Documentary filmmaker Michael Moore is telling Democratic presidential nominee 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's supporters to treat the first presidential debate of 2016 as a Donald Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE victory and to not get complacent.

Moore took to Twitter Tuesday, arguing that Clinton had "too much preparation, too much class," and he wished she had gone "full throttle" on Trump, the Republican presidential nominee.

It's over. Trump, the egoist, the racist, the narcissist, the liar, "won." We all lost. His numbers will go up. She told the truth. So what. — Michael Moore (@MMFlint) September 27, 2016

If u want a smart, responsible, compassionate President, she was standing there. If u want reality TV... well, which country do we live in? — Michael Moore (@MMFlint) September 27, 2016

ADVERTISEMENT

While most debate watchers pegged Clinton as the winner, Moore urged "pro-Hillary gloaters" to stay focused. Moore tweeted that Clinton supporters were doing an "end-zone dance again when still on 50-yd line," calling on his followers to actively oppose Trump.

Pro-Hillary gloaters doing end-zone dance again when still on 50-yd line. U MUST get it in your head TRUMP IS GONNA WIN and act accordingly! — Michael Moore (@MMFlint) September 27, 2016

If u just turn off the TV right now and do nothing, you've just elected Donald Trump. Do something! Plan what you're going to do tomorrow. — Michael Moore (@MMFlint) September 27, 2016

Hillary doing better. Fellow Bernie voters -- admit it, there's nothing she's said we disagree with. In fact, she's adopted his positions! — Michael Moore (@MMFlint) September 27, 2016

And he panned Trump's claim that he has a better temperament than Clinton: