Sen. Elizabeth Warren Elizabeth WarrenBiden's fiscal program: What is the likely market impact? Warren, Schumer introduce plan for next president to cancel ,000 in student debt The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon MORE (D-Mass.) is warning supporters not to dismiss Kid Rock's potential Senate bid, saying they should look no further than President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE's victory as proof that the musician could be a serious contender.

“I know a lot of people are thinking: this is some sort of joke, right?” Warren wrote in an email to supporters with the subject line “Senator Kid Rock (R-MI),” the Boston Herald reported Friday.

“Well, maybe this is all a joke — but we all thought Donald Trump was joking when he rode down the escalator at Trump Tower and announced his campaign, too," she wrote.

ADVERTISEMENT

“And sure, maybe this is just a marketing gimmick for a new album or tour — but we all thought Donald Trump was just promoting his reality TV show, too."

Political pundits and many Democrats largely dismissed Trump as a serious contender for the Republican presidential nomination after he declared his candidacy in 2015, pointing to his bombastic rhetoric and unorthodox campaign style as political liabilities that would ultimately cost him any chance at victory.

But the real estate mogul and reality television host dominated in GOP primaries and caucuses, and went on to win several swing states in the November election.

Kid Rock, whose real name is Robert James Ritchie, is a Trump supporter who has visited the president at the White House. He wrote in a post on his website on Thursday that speculation that he could challenge Sen. Debbie Stabenow Deborah (Debbie) Ann StabenowOVERNIGHT ENERGY: Trump rollbacks could add 1.8 billion tons of greenhouse gas emissions over 15 years: analysis | Intensifying natural disasters do little to move needle on climate efforts | Experts warn wildfire smoke could worsen COVID-19 GAO report finds brokers offered false info on coverage for pre-existing conditions Democrats back away from quick reversal of Trump tax cuts MORE (D-Mich.) for her Senate seat was "not a hoax."

Ritchie has not yet filed a statement of candidacy with the Federal Election Commission. But he further fueled speculation on Wednesday, when he posted a photo on Twitter of a sign reading "Kid Rock for U.S. Senate."