Denver is one of the cities that will see “Not My President’s Day” observances Monday to express disloyalty to Donald Trump.

The rally is scheduled from 5 p.m. to 9 p.m. at the state Capitol, according to a Facebook page. As of Sunday afternoon, 558 people indicated they were “going,” and 3,100 were “Interested.”

“Come stand in solidarity with the masses who do not and will not accept a fascist, morally bankrupt and hateful person as our president,” the post states.  “There are sister rally’s (sic) happening across the nation. Let’s show this administration that Denver will continue to denounce these vile policies. We will not be silenced or tempered. We are here to STAY.”

Similar rallies are expected in New York City; Chicago; Salt Lake City; Atlanta; Los Angeles; Milwaukee; Kansas City, Mo.; Washington, D.C.; and other major cities, NBC News reported.

The non-my-president sentiment might be fueled by the fact that Trump lost the popular vote by 2.9 million ballots, while winning the Electoral College. Or it could be fueled by grassroots organizations trying to fire up the progressive base ahead of next year’s mid-term election. It’s probably both.

Anti-Trump rallies have been a fixture in Denver since he was inaugurated a month ago. Coloradans have protested his Muslim travel ban executive order, policies on undocumented immigrants, his perceived views on women’s rights, LGBTQ rights and the environment.

Plans already are in the works for nationwide protests on April 15, the day income taxes are due, to protest Trump’s refusal to release his returns, after he said during the campaign he would, once auditors are through.

Two days after he was inaugurated last, his adviser, Kellyanne Conway, said forget about that.

“The White House response is that he’s not going to release his tax returns,” she said on the ABC program “This Week,” adding “We litigated this all through the election. People didn’t care.”

The next day, Conway tweeted that he would eventually release his returns.