“That's not what you need in your life," he said.
The race for the White House is heading into the final stretch with most polls showing Vice President Kamala Harris and former President Donald Trump neck-and-neck in key states with less than two weeks to go.
As of Saturday night, more than 40 million Americans cast an absentee ballot or voted early in person, according to the Election Lab at the University of Florida.
Roughly 19.3 million people voted early in person, the lab reported, and more than 20.9 million returned their ballot by mail.
Bruce Springsteen kicked off the first of two appearances at Harris rallies on Thursday night.
The Boss performed "The Promised Land," "Dancing in the Dark" and other hits before the other VIPs, including President Barack Obama, took the stage.
The crowd chanted "USA!" and "Bruce!" as he performed.
Trump continued to lash out Thursday at former John Kelly, his former chief of staff and a retired Marine Corps general, over his his claims that Trump was a fascist and had an affinity for Adolph Hitler's generals.
While he bashed Kelly with childish insults, Trump didn't respond directly to Harris calling him a fascist despite being given an explicit chance to do so during a call in interview with WABC's Cats&Cosby radio show.
“John Kelly was a stupid person," Trump said. "He had two things. He was tough, but ultimately became a marshmallow. At the end of his time, I fired him, he sat in his office and he was as weak as anybody I've ever seen."
Trump then attacked several high-profile military leaders who have denounced the former president, including former Secretary of Defense Mark Esper and retired generals Mark Milley and Jim Mattis.
Later, Trump continued his defamatory rhetoric toward special counsel Jack Smith. As he discussed immigration, alluding to his plan of mass deportations on his first day in office if he's elected, Trump suggested that he should deport Jack Smith, too.
"Jack Smith should be considered mentally deranged, and he should be thrown out of the country," Trump said.
Trump's running mate, Sen. JD Vance, echoed the former president's comments at a rally at Waterford, Michigan, calling Kelly a "disgruntled ex-employee."
Vance questioned Kelly's truthfulness claiming that other Trump staffers had refuted his claims.
"Do we believe multiple eyewitnesses, or do we believe a disgruntled ex-employee?" he asked.
-ABC News' Kelsey Walsh, Lalee Ibssa and Soo Rin Kim
Trump said the Biden-Harris administration's immigration and border policies had made the U.S. a "dumping ground" for other countries during a rally at Tempe, Arizona, on Thursday.
"We're like a garbage can for the world," Trump said. "And every time I come up and talk about what they've done to our country, I get angrier and angrier. [It's the] first time I've ever said 'garbage can.' But you know what? It's a very accurate description."
Trump also said he watched Harris' town hall on CNN Wednesday night, an event Trump declined to attend, and said she was "pathetic."
The former president also criticized President Joe Biden for a gaffe he made telling voters that Trump should be "locked up" before adding "politically."
"He's such a stupid guy. Such a stupid fool," Trump said.
Officials in a Pennsylvania county are warning voters to beware of a fake video circulating on social media purporting to show mail-in-ballots being opened and destroyed ahead of the 2024 election.
"The envelope and materials depicted in this video are clearly not authentic materials belonging to or distributed by the Bucks County Board of Elections," the board said in a bipartisan statement.
The video has been reported to law enforcement agencies, including the FBI and Pennsylvania Department of State.
"This type of behavior is meant to sow division and distrust in our election systems, and makes a mockery of the people working incredibly hard to ensure a free and fair election is carried out. The Board of Elections unequivocally condemns this purposeful spreading of dangerous disinformation. We will not be distracted from the job the voters of Bucks County have entrusted to us," the board said.
-ABC News' Olivia Rubin
