Michael Moore boycotts news outlets that refuse to call Trump a liar

Liberal filmmaker Michael Moore has been one of the largest critics of President Donald Trump, and now he's boycotting newspapers and news channels who resist calling him one name: a liar.

He made the proclamation on his Twitter account Tuesday.

Moore referred to the controversial statement Trump repeated about his losing the popular vote because of millions of fraudulent votes. Trump made the comment to members of Congress in private, and after it leaked to the press, White House Press Secretary Sean Spicer confirmed that this is the stated belief of the newly inaugurated president.

Moore brought attention to the issue by praising the New York Times for calling it the claim a lie in a headline published on Monday.

The issue appears to weigh heavily on his mind, as he mocked Trump for it in earlier tweets also.

Moore referred to the "birther" conspiracy theory that Trump extolled for many years, claiming that Obama was not a U.S. citizen and his birth certificate was a forgery. He then opined that the election should be held again if there were as many illegitimate votes as Trump claims.

Moore called for "100 days of protest" against Trump, which he helped spur with a protest in New York City the day before his inauguration with other celebrities. Prior to that he had called Trump supporters "legal terrorists" and predicted that Trump would win in July of last year. CNN's Jake Tapper addressed Trump's fraudulent vote claim directly in an attempt to debunk the accusation.

A poll taken in December found that a majority of Americans believed Trump had won the popular vote, even though he had not.