WATCH: Liz Cheney Joins Kamala Harris For Town Hall in Pennsylvania

Vice President Kamala Harris and former GOP Rep. Liz Cheney once again joined forces on the campaign trail on Monday in a bipartisan appeal to Republican and undecided voters at a Town Hall in Chester County, Pennsylvania.

As the 2024 presidential election enters its final stretch, both Cheney and Vice President Harris spoke about Donald Trump posing a threat to democracy and national security.

The Town Hall was part of a three-city campaign sweep where Cheney also joined the Vice President in the key battleground states of Michigan and Wisconsin.

Both Cheney and the Vice President focused on Trump's erratic behavior, which was on full display over the weekend. Trump first delivered a lengthy and inappropriate anecdote about Arnold Palmer's penis on Saturday and staged a photo op at an empty McDonald's on Sunday. "People around the world are watching," Vice President Harris said. "And sometimes, I do fret a bit about whether we, as Americans, truly understand how important we are to the world."

"I know the most conservative of all conservative principles is being faithful to the Constitution," Cheney said. "We've watched what he did after the last election. We watched what he did on January 6th."

Cheney was the Vice Co-Chair of the bipartisan January 6th House Select Committee and was also one of the ten Republicans who voted for Trump to be impeached both times. Her ability to put country ahead of party was an example for the more than 200 Republicans who have openly endorsed Vice President Harris.