2024 election updates: Vance tells Harris to 'go to hell'

Vance told reporters he’s preparing for the October vice presidential debate by talking to people on the campaign trail, contending he doesn’t need other preparation against Minnesota Gov. Tim Walz.

“Look, the way I'm doing debate prep is by spending time with these fine people. This is how I do debate prep is to get out there. You get out there, you talk to people, you talk about the issues that matter,” Vance said.

“We don't need to prepare for a debate with Tim Walz. We need to get out there and talk. We need to get out there. Look, we need to get out there and talk to the American people. That's the biggest way that we're going to prepare for that debate on October the first,” he added.

-ABC News' Soo Rin Kim and Hannah Demissie

Sen. JD Vance continued to defend Trump's visit to Arlington Cemetery during a campaign event Wednesday in Erie, Pennsylvania, and went on the attack against Harris, blaming her for the deaths of 13 soldiers three years ago.

"Look, sometimes mistakes happen. That's just the nature of government, the nature of military service. But to have those 13 Americans lose their lives and not fire a single person is disgraceful. Kamala Harris is disgraceful," Vance said.

"We're gonna talk about a story out of those 13 brave innocent Americans who lost their lives, it's that Kamala Harris is so asleep at the wheel that she won't even do an investigation into what happened, and she wants to yell at Donald Trump because he showed up. She can, go to hell," he continued.

The federal government conducted a probe into the final days of the war and American withdrawal and the Pentagon's Central Command concluded in 2022 that the attack was not preventable despite others' assertions that it was preventable.

The Pentagon has conducted multiple rounds of reviews, including the latest review published in April that reaffirmed the initial investigation's findings that the attack was not preventable.

Congress has also scrutinized the attack and heard from many military leaders, including former Marine Sgt. Tyler Vargas-Andrews, who told lawmakers last year that he was thwarted in an attempt to stop the suicide bombing.

Harris, who was campaigning in Georgia Wednesday, did not bring up "incident" at Arlington National Cemetery. Harris-Walz communications director Michael Tyler told CNN on Wednesday that the "incident" at Arlington National Cemetery with former President Trump was "pretty sad," but what "we've come to expect" from the former president.

-ABC News' Soo Rin Kim, Cindy Smith and Hannah Demissie

President Joe Biden will travel to the battleground state of Wisconsin on Sept. 5 to highlight his economic agenda, according to the White House.

Exact details of the trip, including the locations in the state, weren't immediately revealed.

-- ABC News' Justin Gomez

Gov. Tim Walz addressed the International Association of Fire Fighters (IAFF) convention on Wednesday in Boston, making the case that the Democratic ticket was the one that would fight for their freedoms, including labor protections.

“People tell me, look, I'm really not that into politics. My response to that is, too damn bad -- politics is into you,” Walz said to what he acknowledged as a bipartisan audience.

Walz said that Harris “is proudly part of the most pro-labor administration in history,” and that when they “win this election, we'll have your back like you've had ours.”

“We believe that you, not politicians, should be made free to make your own health care choices,” Walz concluded. “We believe that workers deserve to collectively bargain for fair wages and safe working conditions.”

-- ABC News’ Isabella Murray