Tonight, new evacuations as firefighters race to get the upper hand on a historic wildfire exploding in size and now racing through a large part of northern California. The park fire just one of more than 100 raging across the west. Thousands of firefighters are on the front lines of the flames. A state of emergency declared at one point. The park fire scorching 5000 acres an hour. It's already charred an area larger than the city of Phoenix. A popular campground is now under evacuation. We're with residents as they return to their homes. Jacqueline Lee reports from the fire zone. The ABC News exclusive. Stunning new details from the local SWAT team who were standing guard during the attempted assassination of former President Trump. Tonight, they say they had no communication with the Secret Service until after the shooting. Aaron Katersky reports. With just 100 days to go, the race for the White House tightens. Details of the new ABC News Ipsos poll, what voters think of Vice President Harris and former President Trump as the democratic V pop polls auditioned for the role. While pressure mounts on republican vice president presidential candidate JD Vance fears of a wider war in the Middle East.

Israel retaliates in response to the deadly missile strike on civilians in the israeli controlled Golan Heights. Matt Rivers reports from Israel. And Marcus Moore on the ground in Beirut calls for justice. Across the country, a day of mourning for Sonia Massey, the black woman shot dead in her own kitchen by a deputy. A terrifying attack on the high seas. A pod of killer whales sinks a yacht 2 miles offshore. The promising new Alzheimer's blood test that could speed up the diagnosis for patients. Simone Biles wows at the summer games, dominating on the world stage despite an apparent injury, but lies ahead for the GOat and Team USA. Maggie Ruley reports from Paris and America. Strong tonight, 100 years and celebrating the twins who brought five generations together to share their special day.

From ABC News World headquarters in New York, this is World News Tonight.

Good evening, everyone. I'm Lindsay Davis. Thanks so much for joining us on this busy Sunday. We begin with those wildfires raging across the west, more than 100 in all, including the explosive park fire in northern California. That fast moving wildfire is now the largest in the state so far this year, scorching more than 350,000 acres. New evacuations are now underway. Firefighters are working to contain the blaze, but face tough conditions. Flames leaving a trail of ashes, smoke and devastating piles of what once was. Ronnie Stout accused of setting that fire now faces arson charges and is due in court tomorrow. Some experts fear this fire could burn for weeks. We have team coverage tonight. ABC's Jacqueline Lee leads us off from the fire zone tonight.

California's largest wildfire of the year rapidly growing, forcing new evacuations.

We're doing the best we can to safely get them back.

The park fire destroying dozens of homes and buildings, scorching more than 350,000 acres. Firefighters continuing to hold the line, putting out these spot fires. You can see the flames burning inside that tree trunk. And it is a race against time as temperatures continue to rise. Later this week, the fire, now 12%, contained one of more than 100 wildfires burning in the west. We met rancher John Russell near the city of Chico.

When you say did you think it would ever happen? You better believe it.

Officials arrested 42 year old Ronnie stout for suspected arson, alleging he pushed s White House correspondent Mary Alice Parks.Tonight, both campaigns in high gear with no time to waste. Election Day just 100 days away. Vice President Kamala Harris has only been a presidential candidate for seven days, but her favorability rating has grown by eight points to 43%, according to our new ABC News Ipsos poll. Now, potential running mates jockeying to join the Harris ticket, blitzing the campaign trail and Sunday shows.I had a great conversation with her and I pledged to her that no matter what the outcome of this process, that I'd be working hard for her and making sure that she wins in November.From billionaire Illinois governor JB Pritzker, an heir to the Hyatt hotel chain, to transportation Secretary Pete Buttigieg out defending Harris.I'm pretty sure voters are worried about the age and acuity of President Trump compared to Kamala Harris, who represents being a generation younger.Harris celebrating a groundswell of support, claiming her campaign has raised $200 million in this last week. Since Biden dropped out and endorsed her in battleground states.People have been flooding our offices around.The country to volunteer.Former President Trump saying he's done with any idea of toning down the rhetoric after that assassination attempt.We have a brand new victim. And honestly, she's a radical left lunatic.Minnesota Governor Tim Waltz, beloved by unions and also rumored to be a top vp contender for Harris, unfazed arguing. Republicans say every Democrat is too liberal.What a monster. Kids are eating, eating and having full belly so they can go learn. And women are making their own health care decisions. Look, they're going to label whatever they're going to label.Trump's running mate, Ohio Senator JD Vance today dismissing the scrutiny that he's faced for past comments that he made about not liking Trump.Donald Trump accepts that people can change their mind.Now, Vice President Harris is expected to announce her running mate by August 7. That's when the Democratic Party is hoping to wrap up their formal nominating process. That process could actually begin as early as this week with a remote virtual roll call of delegates.Lindsey things are happening quickly. Mary Alice from the White House, thanks so much. Next tonight, a nation remembers Sonia Massey. Vigils were held in dozens of cities for the 36 year old mother of two fatally shot by a sheriff's deputy in her own kitchen in Springfield, Illinois. That officer was fired and charged with first degree murder. The case continues to spark national outrage and demands for justice overseas. Now to the escalating tensions in the Middle east. The IDF launching a series of strikes inside Lebanon. That's after twelve children were killed by a rocket launched from Lebanon.US and other democracies denounced Maduro's last election in 2018 as rigged. There's deep uncertainty about the outcome tonight, but a contested election could trigger mass protests and potentially another wave of emigration. A tense night ahead.Lindsay, we'll be monitoring that. Patrick, thank you. Now to the second day of the summer Games in Paris and Team USA boosting its medal count. Simone Biles makes a triumphant return battling through an apparent injury. And Team USA Basketball played its first game dominating team Serbia. Kevin Durant and LeBron James led the way. More now from the ABC's Baggy ruley in Paris tonight.Tonight, an olympic comeback for Simone Biles powering through the most difficult vault ever landed by a woman in the Olympics despite a calf injury. Double Pike. Biles launching off the vault, doing a backflip twice in the air with her hips bent and legs straight as if she's sitting on the floor, a move so rare it's now called the biles two. The crowd roaring for Team USA and Biles triumphant return to the mat after suffering a mental block in Tokyo known as the twisties, prompting her to withdraw from the majority of the competition today, the 27 year old soaring above the other gymnast with the highest scores in vault and floor, heading into the individual all around final. Seated number one, her coach joking afterward, not perfect so she can improve even biles, the most decorated women's gymnast ever, injuring her calf before her floor routine, wrapping her ankle and seen limping, even crawling at times, joining her in the all around teammate and defending gold medalist Sunisa Lee, making her own comeback after battling kidney disease, striving for individual gold on the uneven bars and in the pool, another gold for Team USA. A one two finish for the american women in the 100 meters butterfly, Tori Husk with gold, edging out teammate Gretchen Walsh with silver.We all can attest to how close that was, and it was a great race. And Lindsey, for the first time in history, we will have two former Olympic all around gold medalist facing off for the title again. And if either of these american women, Simone Biles or Sunisa Lee, win gold again, it'll be the first time since the 1960s that a woman has won two Olympic all around competitions.Lindsey, somehow I'm feeling good about it. Maggie, thank you. There's so much more ahead here on World News tonight. This Sunday, a new and simpler way to diagnose Alzheimer's could be on the horizon, much less invasive than current tests. And the nearly two day nightmare on a Southern California highway pushes drivers to their limit. Next tonight, forecasters are watching a disturbance in the Atlantic that has the potential for development. Favorable conditions could help it form into a tropical depression in the coming days over the Leeward Islands or greater Antilles in the southwestern Atlantic. Stay tuned. An end to what had been a nightmare for motorists in southern California. The northbound lanes of the I 59 freeway between Barstow and Baker reopened early this morning. A section of road, a main route to Las Vegas, had been shut down for about 48 hours after a fiery crash involving a truck carrying lithium ion batteries. Motorists reported being stuck for hours. When we come back, orcas sink a yacht in the Mediterranean to the index. Now, researchers in Sweden say early results are promising for new Alzheimer's blood test. The test, which is not FDA approved, measures proteins in spinal fluid.It would be less invasive for patients and could be administered by a primary care physician. Current tests are only performed at specialized centers. Doctors say more study is needed. Some terrifying moments on the high seas. A british boat captain says a pod of about five killer whales repeatedly attacked his yacht in a methodical way, he says, in an effort to sink the vessel. The incident lasted about 2 hours. He and his crew eventually abandoned ship, leaving the yacht to sink in the Mediterranean. Captain and crew were rescued by a passing ship. When we come back, the twins still going strong after 100 years. And what a celebration. Finally tonight, America strong. The twin sisters celebrating a milestone filled with life, love and family. Loras and Doris grew up doing everything together, and they still do. This month, they celebrated their 100th birthday. Happy hundredth birthday. These twin sisters from Detroit got all gussied up in their identical t shirts, which succinctly sum up their milestone with one word, fabulous. It's a blessing to be here. Ever. Until in 1924, the first Winter Olympics were held. Calvin Coolidge was president. And that same year, these now newly minted centenarians were born.We're always together with everything. Everything. And the icing on top, a custom decorated birthday cake for these two sisters who say they're grateful for the gift of longevity, that being able to live in the present is the present. Good Lord, bless us to you, our family. It's just precious to live. And happy birthday. Thanks so much for watching. I'm Lindsay Davis. Have a great night.Thank you for making world news. Tonight with David Muir, America's most watched newscast.

s White House correspondent Mary Alice Parks.

Tonight, both campaigns in high gear with no time to waste. Election Day just 100 days away. Vice President Kamala Harris has only been a presidential candidate for seven days, but her favorability rating has grown by eight points to 43%, according to our new ABC News Ipsos poll. Now, potential running mates jockeying to join the Harris ticket, blitzing the campaign trail and Sunday shows.

I had a great conversation with her and I pledged to her that no matter what the outcome of this process, that I'd be working hard for her and making sure that she wins in November.

From billionaire Illinois governor JB Pritzker, an heir to the Hyatt hotel chain, to transportation Secretary Pete Buttigieg out defending Harris.

I'm pretty sure voters are worried about the age and acuity of President Trump compared to Kamala Harris, who represents being a generation younger.

Harris celebrating a groundswell of support, claiming her campaign has raised $200 million in this last week. Since Biden dropped out and endorsed her in battleground states.

People have been flooding our offices around.

The country to volunteer.

Former President Trump saying he's done with any idea of toning down the rhetoric after that assassination attempt.

We have a brand new victim. And honestly, she's a radical left lunatic.

Minnesota Governor Tim Waltz, beloved by unions and also rumored to be a top vp contender for Harris, unfazed arguing. Republicans say every Democrat is too liberal.

What a monster. Kids are eating, eating and having full belly so they can go learn. And women are making their own health care decisions. Look, they're going to label whatever they're going to label.

Trump's running mate, Ohio Senator JD Vance today dismissing the scrutiny that he's faced for past comments that he made about not liking Trump.

Donald Trump accepts that people can change their mind.

Now, Vice President Harris is expected to announce her running mate by August 7. That's when the Democratic Party is hoping to wrap up their formal nominating process. That process could actually begin as early as this week with a remote virtual roll call of delegates.

Lindsey things are happening quickly. Mary Alice from the White House, thanks so much. Next tonight, a nation remembers Sonia Massey. Vigils were held in dozens of cities for the 36 year old mother of two fatally shot by a sheriff's deputy in her own kitchen in Springfield, Illinois. That officer was fired and charged with first degree murder. The case continues to spark national outrage and demands for justice overseas. Now to the escalating tensions in the Middle east. The IDF launching a series of strikes inside Lebanon. That's after twelve children were killed by a rocket launched from Lebanon.US and other democracies denounced Maduro's last election in 2018 as rigged. There's deep uncertainty about the outcome tonight, but a contested election could trigger mass protests and potentially another wave of emigration. A tense night ahead.Lindsay, we'll be monitoring that. Patrick, thank you. Now to the second day of the summer Games in Paris and Team USA boosting its medal count. Simone Biles makes a triumphant return battling through an apparent injury. And Team USA Basketball played its first game dominating team Serbia. Kevin Durant and LeBron James led the way. More now from the ABC's Baggy ruley in Paris tonight.Tonight, an olympic comeback for Simone Biles powering through the most difficult vault ever landed by a woman in the Olympics despite a calf injury. Double Pike. Biles launching off the vault, doing a backflip twice in the air with her hips bent and legs straight as if she's sitting on the floor, a move so rare it's now called the biles two. The crowd roaring for Team USA and Biles triumphant return to the mat after suffering a mental block in Tokyo known as the twisties, prompting her to withdraw from the majority of the competition today, the 27 year old soaring above the other gymnast with the highest scores in vault and floor, heading into the individual all around final. Seated number one, her coach joking afterward, not perfect so she can improve even biles, the most decorated women's gymnast ever, injuring her calf before her floor routine, wrapping her ankle and seen limping, even crawling at times, joining her in the all around teammate and defending gold medalist Sunisa Lee, making her own comeback after battling kidney disease, striving for individual gold on the uneven bars and in the pool, another gold for Team USA. A one two finish for the american women in the 100 meters butterfly, Tori Husk with gold, edging out teammate Gretchen Walsh with silver.We all can attest to how close that was, and it was a great race. And Lindsey, for the first time in history, we will have two former Olympic all around gold medalist facing off for the title again. And if either of these american women, Simone Biles or Sunisa Lee, win gold again, it'll be the first time since the 1960s that a woman has won two Olympic all around competitions.Lindsey, somehow I'm feeling good about it. Maggie, thank you. There's so much more ahead here on World News tonight. This Sunday, a new and simpler way to diagnose Alzheimer's could be on the horizon, much less invasive than current tests. And the nearly two day nightmare on a Southern California highway pushes drivers to their limit. Next tonight, forecasters are watching a disturbance in the Atlantic that has the potential for development. Favorable conditions could help it form into a tropical depression in the coming days over the Leeward Islands or greater Antilles in the southwestern Atlantic. Stay tuned. An end to what had been a nightmare for motorists in southern California. The northbound lanes of the I 59 freeway between Barstow and Baker reopened early this morning. A section of road, a main route to Las Vegas, had been shut down for about 48 hours after a fiery crash involving a truck carrying lithium ion batteries. Motorists reported being stuck for hours. When we come back, orcas sink a yacht in the Mediterranean to the index. Now, researchers in Sweden say early results are promising for new Alzheimer's blood test. The test, which is not FDA approved, measures proteins in spinal fluid.It would be less invasive for patients and could be administered by a primary care physician. Current tests are only performed at specialized centers. Doctors say more study is needed. Some terrifying moments on the high seas. A british boat captain says a pod of about five killer whales repeatedly attacked his yacht in a methodical way, he says, in an effort to sink the vessel. The incident lasted about 2 hours. He and his crew eventually abandoned ship, leaving the yacht to sink in the Mediterranean. Captain and crew were rescued by a passing ship. When we come back, the twins still going strong after 100 years. And what a celebration. Finally tonight, America strong. The twin sisters celebrating a milestone filled with life, love and family. Loras and Doris grew up doing everything together, and they still do. This month, they celebrated their 100th birthday. Happy hundredth birthday. These twin sisters from Detroit got all gussied up in their identical t shirts, which succinctly sum up their milestone with one word, fabulous. It's a blessing to be here. Ever. Until in 1924, the first Winter Olympics were held. Calvin Coolidge was president. And that same year, these now newly minted centenarians were born.We're always together with everything. Everything. And the icing on top, a custom decorated birthday cake for these two sisters who say they're grateful for the gift of longevity, that being able to live in the present is the present. Good Lord, bless us to you, our family. It's just precious to live. And happy birthday. Thanks so much for watching. I'm Lindsay Davis. Have a great night.Thank you for making world news. Tonight with David Muir, America's most watched newscast.

US and other democracies denounced Maduro's last election in 2018 as rigged. There's deep uncertainty about the outcome tonight, but a contested election could trigger mass protests and potentially another wave of emigration. A tense night ahead.

Lindsay, we'll be monitoring that. Patrick, thank you. Now to the second day of the summer Games in Paris and Team USA boosting its medal count. Simone Biles makes a triumphant return battling through an apparent injury. And Team USA Basketball played its first game dominating team Serbia. Kevin Durant and LeBron James led the way. More now from the ABC's Baggy ruley in Paris tonight.

Tonight, an olympic comeback for Simone Biles powering through the most difficult vault ever landed by a woman in the Olympics despite a calf injury. Double Pike. Biles launching off the vault, doing a backflip twice in the air with her hips bent and legs straight as if she's sitting on the floor, a move so rare it's now called the biles two. The crowd roaring for Team USA and Biles triumphant return to the mat after suffering a mental block in Tokyo known as the twisties, prompting her to withdraw from the majority of the competition today, the 27 year old soaring above the other gymnast with the highest scores in vault and floor, heading into the individual all around final. Seated number one, her coach joking afterward, not perfect so she can improve even biles, the most decorated women's gymnast ever, injuring her calf before her floor routine, wrapping her ankle and seen limping, even crawling at times, joining her in the all around teammate and defending gold medalist Sunisa Lee, making her own comeback after battling kidney disease, striving for individual gold on the uneven bars and in the pool, another gold for Team USA. A one two finish for the american women in the 100 meters butterfly, Tori Husk with gold, edging out teammate Gretchen Walsh with silver.

We all can attest to how close that was, and it was a great race. And Lindsey, for the first time in history, we will have two former Olympic all around gold medalist facing off for the title again. And if either of these american women, Simone Biles or Sunisa Lee, win gold again, it'll be the first time since the 1960s that a woman has won two Olympic all around competitions.

Lindsey, somehow I'm feeling good about it. Maggie, thank you. There's so much more ahead here on World News tonight. This Sunday, a new and simpler way to diagnose Alzheimer's could be on the horizon, much less invasive than current tests. And the nearly two day nightmare on a Southern California highway pushes drivers to their limit. Next tonight, forecasters are watching a disturbance in the Atlantic that has the potential for development. Favorable conditions could help it form into a tropical depression in the coming days over the Leeward Islands or greater Antilles in the southwestern Atlantic. Stay tuned. An end to what had been a nightmare for motorists in southern California. The northbound lanes of the I 59 freeway between Barstow and Baker reopened early this morning. A section of road, a main route to Las Vegas, had been shut down for about 48 hours after a fiery crash involving a truck carrying lithium ion batteries. Motorists reported being stuck for hours. When we come back, orcas sink a yacht in the Mediterranean to the index. Now, researchers in Sweden say early results are promising for new Alzheimer's blood test. The test, which is not FDA approved, measures proteins in spinal fluid.

It would be less invasive for patients and could be administered by a primary care physician. Current tests are only performed at specialized centers. Doctors say more study is needed. Some terrifying moments on the high seas. A british boat captain says a pod of about five killer whales repeatedly attacked his yacht in a methodical way, he says, in an effort to sink the vessel. The incident lasted about 2 hours. He and his crew eventually abandoned ship, leaving the yacht to sink in the Mediterranean. Captain and crew were rescued by a passing ship. When we come back, the twins still going strong after 100 years. And what a celebration. Finally tonight, America strong. The twin sisters celebrating a milestone filled with life, love and family. Loras and Doris grew up doing everything together, and they still do. This month, they celebrated their 100th birthday. Happy hundredth birthday. These twin sisters from Detroit got all gussied up in their identical t shirts, which succinctly sum up their milestone with one word, fabulous. It's a blessing to be here. Ever. Until in 1924, the first Winter Olympics were held. Calvin Coolidge was president. And that same year, these now newly minted centenarians were born.

We're always together with everything. Everything. And the icing on top, a custom decorated birthday cake for these two sisters who say they're grateful for the gift of longevity, that being able to live in the present is the present. Good Lord, bless us to you, our family. It's just precious to live. And happy birthday. Thanks so much for watching. I'm Lindsay Davis. Have a great night.

Thank you for making world news. Tonight with David Muir, America's most watched newscast.