Rep. Eric Swalwell (D-Calif.) criticized President Trump for his use of Twitter on Saturday, saying that he should include a warning in front of each tweet saying, "not at all presidential."

"You know, he probably needs a 'While not at all presidential' macro for every tweet," Swalwell tweeted after Trump used the phrase in a tweet criticizing liberal filmmaker Michael Moore.

You know, he probably needs a “While not at all presidential” macro for every tweet. https://t.co/XTIgkaq0j0 — Rep. Eric Swalwell (@RepSwalwell) October 28, 2017

Trump tweeted earlier Saturday: "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!"

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Moore's one-man play "The Terms of My Surrender" generated a meager $4.3 million during its run on Broadway, far less than it was expected to make.

The Academy Award-winning movie director, a frequent critic of the president, led the crowd from the opening night of his new show to Trump Tower in Manhattan in August to protest the president's scattered comments on a violent white nationalist rally in Charlottesville, Va.

Swalwell previously criticized the president over his tweet sharing a gif depicting him hitting a golf ball that knocked over former Democratic presidential candidate Hillary Clinton Hillary Diane Rodham ClintonJoe Biden looks to expand election battleground into Trump country Biden leads Trump by 12 points among Catholic voters: poll The Hill's Campaign Report: Biden goes on offense MORE while boarding a plane, calling the tweet "clASSy."