Sen. Sherrod Brown Sherrod Campbell BrownBipartisan praise pours in after Ginsburg's death Emboldened Democrats haggle over 2021 agenda Hillicon Valley: Russia 'amplifying' concerns around mail-in voting to undermine election | Facebook and Twitter take steps to limit Trump remarks on voting | Facebook to block political ads ahead of election MORE (D-Ohio) took a shot at some of his fellow Democrats on Friday, saying that "Medicare for all" is not a practical idea.

“I know most of the Democratic primary candidates are all talking about Medicare for all. I think instead we should do Medicare at 55,” Brown said.

Brown, who may run for president himself, spoke during a roundtable discussion with the Clear Lake Chamber Of Commerce in Iowa.

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“If someone has lost her job at [age] 58 or his plant closes at 62, he should be able to buy into Medicare early. It will cost a little bit more, but to me that’s about helping people now … it’s something we might be able to get through Congress,” Brown said.

Medicare for all has been gaining traction among many progressive Democratic candidates like Sen. Kamala Harris Kamala HarrisJoe Biden looks to expand election battleground into Trump country Fox's Napolitano: Supreme Court confirmation hearings will be 'World War III of political battles' Rush Limbaugh encourages Senate to skip hearings for Trump's SCOTUS nominee MORE (Calif.), Cory Booker Cory Anthony BookerBipartisan praise pours in after Ginsburg's death DHS opens probe into allegations at Georgia ICE facility Democratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility MORE (N.J.) and Elizabeth Warren Elizabeth WarrenJudd Gregg: The Kamala threat — the Californiaization of America GOP set to release controversial Biden report Biden's fiscal program: What is the likely market impact? MORE (Mass.), and some on the left view support for such legislation as a litmus test.

Brown is not historically opposed to Medicare for all as an aspiration, but he said he would rather focus on what’s practical.

“I’m not going to come and make a lot of promises like President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE did ... I’m going to talk about what’s practical and what we can make happen. And if that makes me different from the other candidates so be it,” he said.

Brown is one of the primary sponsors of “Medicare at 55” legislation in the Senate, a moderate alternative to Medicare for all that was pushed by Hillary Clinton Hillary Diane Rodham ClintonJoe Biden looks to expand election battleground into Trump country Biden leads Trump by 12 points among Catholic voters: poll The Hill's Campaign Report: Biden goes on offense MORE when she ran for president in 2016.

Former President Bill Clinton William (Bill) Jefferson ClintonGOP brushes back charges of hypocrisy in Supreme Court fight Battle lines drawn on precedent in Supreme Court fight Sunday shows - Ruth Bader Ginsburg's death dominates MORE also proposed expanding Medicare in 1998 by allowing certain workers between the ages of 55 and 65 to buy Medicare.

Brown also helped write the “public option” into ObamaCare, but the provision was removed before the law was passed.

Brown has increasingly been seen as a presidential candidate since his reelection victory in November, when he easily won another term in a state that voted for President Trump in the 2016 election.

The Ohioan has been cast as a Democrat who could win states in the industrial heartland that the party lost to Trump in 2016, such as Michigan, Wisconsin and Pennsylvania.