President Joe Biden opened up on the whirlwind of events over the last couple of months during an appearance on "The View" Wednesday.

Biden said he is "at peace" with his decision to exit the 2024 race but says he is still confident he would have defeated Donald Trump in November.

"Look, when I ran for this last term, I said I saw myself as a transition president … But what happened was we were having so much success in getting things done that people felt we couldn't get done, I found myself having used more time than I would've ordinarily to, you know, pass that torch."

Biden then turned to praising Harris, who he called "tough" and "honorable."

"And the thing I like about her, and one thing we share in common, is that we have an optimistic view of the future," he said.

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Trump's Butler, Pennsylvania, rally will take place at the same site where his first assassination attempt took place.

The wife and daughters of Corey Comperatore, the man who was killed during the assassination attempt, are expected to attend Trump's Butler rally along with the two supporters who were injured during the shooting: David Dutch and James Copenhaver, according to a senior campaign official.

"During his visit, President Trump will honor the memory of Corey Comperatore, who heroically sacrificed his life to shield his wife and daughters from the bullets on that terrible day. President Trump will also recognize the two other Americans who were wounded by the shooter, David Dutch and James Copenhaver," the campaign said in a press release.

Trump will also "express his deep gratitude to law enforcement and first responders, and thank the entire community for their outpouring of love and support in the wake of the attack," the campaign said.

-ABC News' Soorin Kim, Lalee Ibssa and Kelsey Walsh

House Oversight Committee Chairman James Comer launched an investigation into the Biden-Harris administration for allowing Ukrainian President Volodymyr Zelenskyy to fly on a military plane to Pennsylvania earlier this week.

“The Committee seeks to determine whether the Biden-Harris Administration attempted to use a foreign leader to benefit Vice President Harris’s presidential campaign and, if so, necessarily committed an abuse of power,” Comer said in a statement Wednesday.

The committee sent letters to Attorney General Merrick Garland, Secretary of Defense Lloyd Austin and White House Counsel Edward Siskel. Chairman Comer is requesting documents, information and communications about Zelenskyy’s visit to the U.S. in September.

-ABC News' Lauren Peller

Trump will deliver remarks in Mint Hill, North Carolina, at 1 p.m. He will speak about the economy, according to a campaign release.

Later, his running mate, Sen. JD Vance, will speak in Travers City, Michigan. The event is scheduled to begin at 7 p.m.