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 trails several of his potential Democratic challengers in theoretical head-to-head matchups among Catholic voters, though his approval rating has ticked up slightly in the last year among the group, according to a poll released Monday.

The poll, conducted by Real Clear Opinion and Catholic network EWTN, found 47 percent of Catholic voters approve of Trump's job performance. Thirty-four percent of Catholics surveyed said they will definitely vote to reelect Trump.

The president gets particularly high marks from those who identify as devout Catholics, as 63 percent of that subset approve of Trump.

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A Real Clear/EWTN poll of Catholics released in November 2019 showed Trump with a 44 percent approval rating.

Despite the slight bump in approval, Catholic voters still favor most of the president's potential challengers in the November election, Monday's poll found.

Former Vice President Joe Biden Joe BidenMomentum growing among Republicans for Supreme Court vote before Election Day Trump expects to nominate woman to replace Ginsburg next week Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral MORE, himself a Catholic, beat Trump 51-40 among Catholic voters in a theoretical head-to-head matchup.

Sen. Bernie Sanders Bernie SandersNYT editorial board remembers Ginsburg: She 'will forever have two legacies' Two GOP governors urge Republicans to hold off on Supreme Court nominee Sanders knocks McConnell: He's going against Ginsburg's 'dying wishes' MORE (I-Vt.), who appears on track to seize a commanding lead in the Democratic nominating contest, leads Trump among Catholics 50-41.

Former New York City Mayor Michael Bloomberg Michael BloombergTop Democratic super PAC launches Florida ad blitz after Bloomberg donation The Hill's 12:30 Report - Presented by Facebook - Latest with the COVID-19 relief bill negotiations The Memo: 2020 is all about winning Florida MORE is the next most preferred Democrat among those surveyed, leading Trump 48-39 among Catholics, according to the poll. The president also trails 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.) and former South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegBipartisan praise pours in after Ginsburg's death Bogeymen of the far left deserve a place in any Biden administration Overnight Defense: Woodward book causes new firestorm | Book says Trump lashed out at generals, told Woodward about secret weapons system | US withdrawing thousands of troops from Iraq MORE, the poll found.

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The survey was conducted Jan. 28-Feb. 4, and 1,521 people were polled. Of those, 274 were identified as devout Catholics. The margin of error in the survey is 2.8 percentage points.

The president has made a concerted effort to appeal to religious voters, evangelical Christians in particular, with policies aimed at protecting religious liberty and the appointment of conservative judges. Both Trump and Vice President Mike Pence Michael (Mike) Richard PenceMomentum growing among Republicans for Supreme Court vote before Election Day Sunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election McConnell urges GOP senators to 'keep your powder dry' on Supreme Court vacancy MORE have met with the Pope since taking office.

The Trump campaign is expected to launch a "Catholics for Trump" coalition to further build support among the group.

Trump carried 52 percent of the Catholic vote in 2016 compared to 45 percent for Democrat Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE, according to data from Pew Research Center.