In an interview on PBS’s Firing Line, Moore addressed the Warren campaign’s claim that Sanders told the Massachusetts senator he did not believe a woman could beat President Donald Trump in 2020. Sanders has denied that he said a woman could not win. “It is ludicrous to believe that at the same meeting where Elizabeth Warren told me she was going to run for president I would tell her that a woman couldn’t win,” the Vermont senator told CNN.

The Fahrenheit 11/9 director also called the dispute “very sad.” Moore, who said he knows Warren and Sanders, used both of them in Capitalism: A Love Story, his 2009 film. Warren also appeared in Sicko, and Sanders was in Fahrenheit 11/9.

Moore said he didn’t understand why Warren’s campaign released the statement. “You couldn’t even read in her statement what really was said or what happened,” he said. Moore, who has endorsed Sanders for president in 2020, also noted that “there’s no way [Sanders] said anything like the way it’s been reported.”

Moore also said that when the feud began, he felt it was a turning point that will lead to Trump’s re-election. “To be honest, the night that happened, my first thought was: They will mark this day January 13th, as the day Donald Trump was re-elected,” he said. “Because, once again the Democrats, the liberals couldn’t get it together, couldn’t figure [it] out, instead of so happy to get right in there and fight each other like this.”

Moore also said that Democrats need to take responsibility for their party’s failures. “When are we ever going to learn?” he asked. “This is on us. This is not on the Russians. It’s not on the Republicans. It’s on the Democratic Party for not getting its act together and not using its head.”

Moore, the Sanders campaign and the Warren campaign did not immediately respond to Newsweek’s requests for comment.

In another clip from the interview, host Margaret Hoover asked Moore about his 2016 essay “5 Reasons Why Trump Will Win,” specifically his point that Trump’s election was “the last stand of the angry white man.” Moore said that people “shouldn’t be frightened” of a female president.

“The country will be a better place with more women in charge, with more women running things,” he said. “Look around the world, in those countries where women have more power—both political power, corporate power, all kinds of power. Things are just a little bit better. They’re a little kinder.”