Three weeks into the run of his anti-Trump Broadway show, The Terms of My Surrender , filmmaker and activist Michael Moore tells Fast Company that the president will be reelected in 2020. “I should say re-appointed, because we will have an even larger population that will vote against him in 2020,” Moore says. “But he will win those electoral states as it stands now.”

As dire as Moore’s prediction is–and let’s not forget that he was one of the few people who foresaw a Trump victory–he has a plan to change how it stands. His show is an attempt to generate the momentum and activism he thinks we need to shift the facts before the next election. “Here’s the good news: We don’t have to convince a single Trump voter to vote differently because we already have the majority,” Moore says, pointing out that Hillary Clinton won the popular vote by nearly 3 million.

But she lost the electoral college by 77,000 votes in total in the states of Michigan, Wisconsin, and Pennsylvania, and despite a movement afoot now to abolish the electoral college, it’s unlikely that is going to happen anytime soon, Moore says.

That said, he believes the National Popular Vote interstate compact, an agreement between states to award all of their electoral votes to the candidate who wins the popular vote, could succeed as a workaround if we can convince enough state legislatures to pass it in time. So far, it has won approval in 10 states and Washington, D.C.–the agreement will only be enacted once states delivering a total of 270 electoral votes have signed on, and it’s still far from that goal.

“That’ll be an easier way to get this done,” Moore says. “People should not despair, thinking, well, the Republicans have all this power and all that. Think of the suffragettes. They were trying to get the vote for women. They got [the 19th Amendment ratified] in 35 states to give women the right to vote. Think of that uphill battle.”

Moore also says we have to get people united behind the most viable candidate–whoever that will be–battling Trump for the presidency in the next election. “Eight million Obama voters voted for Trump. We just need to convince a few of them–hold out our hand and bring them back. Can we do that? I think we can do that,” Moore says. “You know, there were seven-and-a-half million that voted Green or Libertarian. I think we can convince a few of them to come back. We don’t need to convince a whole lot here.”

“But we do have to do some work to bring in people who would be sympathetic,” he says, “and maybe they were justifiably upset, angry, and hurt and whatever, and we get that. But now they’ve seen how dangerous it is to have him as president of the United States. So I think we can bring enough people back.”