Sen. Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE (I-Vt.) will head to Iowa this month to campaign with a former presidential campaign aide who is running for Congress.

Sanders will headline a Feb. 23 event in Des Moines for Iowa's 3rd District Democratic candidate Pete D’Alessandro, who worked as his adviser during the Iowa caucus in 2016.

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“Bernie knows that we need bold, progressive leaders in Congress if we’re going to change the direction of our country,” D’Alessandro said in a statement to the Des Moines Register.

“That’s why I’m proudly supporting Medicare for All, a $15/hour living wage, and free college tuition for those who work hard. We can take our country back and continue the movement Bernie started here in 2016," he continued.

The visit marks Sanders's first trip to Iowa this year and is likely to spark speculation about a potential 2020 presidential run.

Sanders narrowly lost the state's caucus to eventual Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonWhat Senate Republicans have said about election-year Supreme Court vacancies Bipartisan praise pours in after Ginsburg's death Trump carries on with rally, unaware of Ginsburg's death MORE in 2016.

He is considered part of a large field of potential Democratic candidates to challenge President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE, including former Vice President Joe Biden Joe BidenSenate Republicans face tough decision on replacing Ginsburg What Senate Republicans have said about election-year Supreme Court vacancies Biden says Ginsburg successor should be picked by candidate who wins on Nov. 3 MORE, former Virginia Gov. Terry McAuliffe, and Sens. Kamala Harris Kamala HarrisThe Hill's Campaign Report: Trump and Biden vie for Minnesota | Early voting begins in four states | Blue state GOP governors back Susan Collins Kamala Harris: Black Americans have been 'disproportionately harmed' by Trump Biden town hall draws 3.3 million viewers for CNN 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 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 (Mass.).