A political action committee affiliated with former Maryland Gov. Martin O’Malley polled Democratic caucus voters in Iowa, suggesting that the failed 2016 presidential contender might be considering trying again in 2020. 

O’Malley’s leadership PAC commissioned a Public Policy Polling survey earlier this month, according a POLITICO report.

Politico reports O’Malley lead the other potential Democratic candidates with 18 percent of the vote. Other candidates included Sen. Cory Booker (D-N.J.), former Housing Secretary Julian Castro, Gov. Andrew Cuomo (D-N.Y.), Sen. Kirsten GillibrandKirsten GillibrandWarren, Democrats urge Trump to back down from veto threat over changing Confederate-named bases Warren, Pressley introduce bill to make it a crime for police officers to deny medical care to people in custody Senate Dems press DOJ over coronavirus safety precautions in juvenile detention centers MORE (D-N.Y.), Sen. Kamala Harris (D-Calif.), Sen. Amy KlobucharAmy KlobucharHillicon Valley: Biden calls on Facebook to change political speech rules | Dems demand hearings after Georgia election chaos | Microsoft stops selling facial recognition tech to police Democrats demand Republican leaders examine election challenges after Georgia voting chaos Harris grapples with defund the police movement amid veep talk MORE (D-Minn.) and well-known business leaders like Facebook COO Sheryl Sandberg and Starbucks CEO Howard Schultz. 

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While most of the other candidates received less than 10 percent of the vote, Booker followed close behind O’Malley with 17 percent, while Klobuchar received 11 percent. Nearly a third of the polled Iowans voted “not sure.”

The poll didn’t include other high-profile potential Democratic hopefuls, including Sen. Elizabeth WarrenElizabeth WarrenWarren, Democrats urge Trump to back down from veto threat over changing Confederate-named bases OVERNIGHT DEFENSE: Joint Chiefs chairman says he regrets participating in Trump photo-op | GOP senators back Joint Chiefs chairman who voiced regret over Trump photo-op | Senate panel approves 0B defense policy bill Trump on collision course with Congress over bases with Confederate names MORE (D-Mass.), Sen. Sherrod BrownSherrod Campbell BrownHillicon Valley: Senators raise concerns over government surveillance of protests | Amazon pauses police use of its facial recognition tech | FBI warns hackers are targeting mobile banking apps Democratic senators raise concerns over government surveillance of protests Some realistic solutions for income inequality MORE (D-Ohio) and Sen. Bernie SandersBernie SandersThe Hill’s 12:30 Report: Milley apologizes for church photo-op Harris grapples with defund the police movement amid veep talk Biden courts younger voters — who have been a weakness MORE (I-Vt.)

Presidential hopefuls often focus on Iowa because, as the first contest in the Democratic primary, it can provide momentum for candidates in a crowded field.

O’Malley ran for the Democratic nomination in 2016, but he dropped out of the race after receiving little support in a race that became defined by the fight between Hillary ClintonHillary Diane Rodham ClintonWhite House accuses Biden of pushing ‘conspiracy theories’ with Trump election claim Biden courts younger voters — who have been a weakness Trayvon Martin’s mother Sybrina Fulton qualifies to run for county commissioner in Florida MORE and Sanders.

Dave Hamrick, O’Malley’s 2016 campaign manager, suggested that the poll would test whether the candidate had garnered support in Iowa during the 2016 election.

“Governor O’Malley spent a lot of time in Iowa during the campaign and made a very favorable impression on Iowa Democrats. We wanted to see if the conversations he started with Iowans resonated and are glad to learn that they did,” Hamrick said.