Filmmaker and activist Michael Moore, a frequent critic of President Trump Donald John TrumpBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Pelosi: Trump Supreme Court pick 'threatens' Affordable Care Act MORE, believes Sen. Bernie Sanders Bernie SandersTrump, Biden will not shake hands at first debate due to COVID-19 Sanders tells Maher 'there will be a number of plans' to remove Trump if he loses Sirota reacts to report of harassment, doxing by Harris supporters MORE (I-Vt.) can defeat the president heading into the 2020 election.

Moore argued that “the weakness of the president” could make Sanders’s White House bid successful in 2020 in a Tuesday interview with MSNBC’s Chris Matthews.

Trump was impeached by the House last week on two articles of impeachment: abuse of power and obstruction of Congress.

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Moore added that Sanders was being “perceived as the real deal” by voters, and that could also be a boost to his campaign.

“He’s outside the box the way Trump was [in 2016]” Moore told Matthews.

Matthews pressed Moore on whether Sanders, who is 78, could “go the distance, all the way through four years.”

Moore responded that he saw Sanders give a speech Saturday “that went an hour and a half” and he “didn’t use that lectern as a crutch or anything.”

“He stood there and powerfully told the people that what we have to do to make this a better country. It was so amazing, and if you’d been there — I’ll tell you, it wasn’t the old Bernie stump speech,” Moore said.

Moore endorsed Sanders among the crowded field of 2020 Democratic candidates in October, saying that “he absolutely can win this” at the time. Moore also endorsed Sanders over former Secretary of State Hillary Clinton Hillary Diane Rodham ClintonThe Memo: Trump furor stokes fears of unrest Bloomberg rolls out M ad buy to boost Biden in Florida Hillicon Valley: Productivity, fatigue, cybersecurity emerge as top concerns amid pandemic | Facebook critics launch alternative oversight board | Google to temporarily bar election ads after polls close MORE in the 2016 Democratic primary.

"Why me for Bernie?" he said in an MSNBC interview. "Bernie understands that capitalism and the greedy form of capitalism, especially, that we have now is at the core of so many of the problems that we're talking about."