Michael Moore warned Democrats about the fight ahead of the 2020 election after seeing the excitement and enthusiasm of President Donald Trump supporters Tuesday night in Orlando.

“I watched the whole thing last night,” the 65-year-old filmmaker tweeted Wednesday to his millions of followers, along with a clip from Trump’s rally in Florida where he officially kicked off his 2020 re-election campaign to a packed arena. (RELATED: Michael Moore: ‘F**k Hope, Seriously, F**k Hope,’ Trump Will Be ‘The Last President’)

I watched the whole thing last night. I know no one wants to waste that kind of time even looking at him, but not wanting to see the enormity of the fight ahead doesn’t make it go away. He hasn’t lost one inch of his fired-up insane base. Are u ready?

pic.twitter.com/nzDvdaQs79 — Michael Moore (@MMFlint) June 19, 2019

“I know no one wants to waste that kind of time even looking at him [Trump], but not wanting to see the enormity of the fight ahead doesn’t make it go away,” he added. “He hasn’t lost one inch of his fired-up insane base. Are u ready?”

View this post on Instagram A post shared by Michael Moore (@michaelfmoore) on Jan 31, 2019 at 1:52pm PST

The documentary filmmaker was one of the first people who warned the left about Trump and correctly predicted, after a presidential debate in 2016 between Trump and Hillary Clinton, that the business mogul would win the election. (RELATED: Michael Moore: ‘Trump–You Know Exactly What You’re Doing’ With Anti-Media Rhetoric)

During the last two years, Moore has been consistent in his attacks on Trump and has repeatedly told Democrats what needs to be done in order to beat him. Most notably, he “appeared on Morning Joe” and said if the Democrats try to run a politician against Trump they will loose the election.

“I think [Trump] is a tumor on our democracy,” Moore explained. “But the tumor shrank last night. He has ripped apart and has taken us to the precipice of whether or not we are going to have the country we thought we used to have or that we were going to have.”

“I come from one of those three states — Michigan — that put him over the top in the electoral college vote,” he added. “Last night, those three states — Pennsylvania, Michigan, and Wisconsin … all went blue.”

Moore continued, “So, there is a lot of good news here. But he is a true danger … The man is a genius in this area. He’s an evil genius ….”

“Kamala Harris,” Mika Brzezinski said, which the filmmaker shot down.

View this post on Instagram A post shared by Michael Moore (@michaelfmoore) on Jan 24, 2019 at 5:45pm PST

“No. Love her. No, not going to happen,” Moore replied.”Corey [Booker] — love him. No. We can not run a politician against him. We will lose.”

“We have to run a beloved American,” he added. “[Barack] Obama became beloved the night of that convention and he was beloved from that moment on. It’s gotta be like a Michelle Obama or a Sully Sullenberger. Why aren’t we thinking along the lines of ‘who can defeat him?’ We will lose in 2020.”