Obama calls Trump 'wannabe king' at Harris event

The Harris campaign seized on former White House chief of staff and ex-Marine general John Kelly's remarks panning Trump as a "fascist," among other things, convening a press call of former GOP military leaders to sound a similar alarm.

"This is a difficult conversation for me as a lifelong Republican who always, you know, supported the Republican Party until Donald Trump came along," Brig. Gen. Steve Anderson said.

Anderson mocked the fact that Trump "couldn't qualify to be in the military -- he has 34 felony convictions -- so, how can we have the commander-in-chief be in charge of a military that he couldn't possibly join?"

Kevin Carroll, who served as senior counsel to Kelly when he was Homeland Security secretary under Trump, also underscored the seriousness of Kelly's surprisingly public rebuke of his old boss.

"I had the honor of working aside him, and I know him speaking out this way was no small step for him," Carroll said.

-ABC News' Will McDuffie, Gabriella Abdul-Hakim, Fritz Farrow

Minnesota Gov. Tim Walz, Harris' running mate, is casting his ballot Wednesday in the 2024 election.

Walz is voting with his wife Gwen and their son Gus, who is a first-time voter, according to the campaign.

They will vote early for Harris at the top of the ticket, the campaign said. They will also vote for Sen. Amy Klobuchar, who is seeking a fourth term, and Rep. Betty McCollum as well as other Democratic candidates further down the ballot.

Hope, the governor's daughter, has already cast her ballot in Montana, Walz has said. On Sunday during a stop in Saginaw, Michigan, the governor said that Hope, who lives in Bozeman most of the time but is often out campaigning with him, had recently returned to the state to cast a vote for Democratic incumbent Jon Tester in that critical Senate race.

-ABC News' Isabella Murray

Harris will continue a media blitz with a 7 p.m. interview airing on Telemundo. In excerpts of the taped interview released on Tuesday, Harris outlined how her economic plans would benefit Latino me and discussed the recent election in Venezuela.

At 9 p.m., Harris will do a live CNN town hall in battleground Pennsylvania.

Trump will be in Georgia, another key swing state, where he'll participate in a 3 p.m. “Believers and Ballots Faith Town Hall." Later, he'll be at a Turning Point Action rally in Duluth at 7 p.m.

At his rally in North Carolina on Tuesday night, Trump praised Chinese President Xi Jinping and remarked on his relationship with Russian President Vladimir Putin.

Trump repeatedly called Xi “a brilliant man" who "runs 1.4 billion people with an iron fist."

"He's a fierce man. I got along with him very well," Trump said. "Putin -- these are people that are tough people. Kim Jong Un, North Korea, nuclear weapons all over the place."

The comments came after Trump's former chief of staff John Kelly warned he believed Trump would rule as a dictator if elected to a second term in an interview with The New York Times.