Director Michael Moore said on Friday that he hopes he is President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE's "worst enemy" in the "battle" for working-class white voters in middle America.

"I think Trump's had a complicated relationship with me – the way that he's tweeted at me in the past and danced around without trying to get too angry, because I am his base," Moore said on HBO's "Real Time with Bill Maher William (Bill) MaherBill Maher to Joy Reid: 'Very nervous' about Biden's chances after GOP convention Bill Maher revives QAnon gag: 'I am Q' Oliver Stone, Bill Maher tangle on reliability of US intelligence on Russia: 'You think they're lying?' MORE." "I am his demographic, and I am an angry middle-aged white guy from the Midwest."

"And I then am his, hopefully, worst enemy. Because the battle is to get as many of the people I grew up with to go with me and not with him," he said.

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Moore, a backer of liberal causes, has spoken critically of Trump and particularly about his appeal to white working-class voters. He launched a one-man Broadway show, "The Terms of My Surrender," over the summer, taking aim at Trump's presidency.

That production closed last month, ultimately falling short of its potential gross. Trump lashed out at Moore on Twitter after the show's run ended.

"While not at all presidential I must point out that the Sloppy Michael Moore Show on Broadway was a TOTAL BOMB and was forced to close. Sad!" Trump tweeted at the time.

Moore joked on Maher's show that it showed "discipline" for Trump not to tweet about the show until after it closed.

During his appearance on Maher's show on Friday, Moore reflected on Trump's 2016 electoral victory in Michigan – the director's home state and one considered reliably Democratic in recent elections.

"We lost Michigan by two votes per precinct. That's it. Two votes per precinct," Moore said. "And so I'm on a mission to make sure that doesn't happen again. Not just in Michigan but across the country."