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 is running neck-and-neck with the top 2020 Democrats angling to challenge him, setting up a tight race in November, according to a survey released Thursday evening.

The Emerson College poll shows Trump within the margin of error in hypothetical head-to-head match-ups against 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.), 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.), 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 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 (D).

Sanders is the only 2020 Democrat with a slight edge over Trump in the survey, leading him 51 percent to 49 percent among registered voters. Both Biden and Warren are locked in 50-50 ties with the president, while Buttigieg trails Trump by a 51 to 49 percent margin. The poll’s margin of error is 2.8 percentage points.

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The latest survey shows only nominal differences from the same poll in December, which had Biden and Sanders leading Trump 52 percent to 48 percent, Warren leading 51 to 49 percent and Buttigieg and the president tied at 50-50.

Trump’s approval rating is essentially running even, with 47 percent of registered voters saying they approve of the job he’s doing and 48 percent saying they disapprove. However, the president is slightly underwater with independents, with 44 percent approving of his performance and 49 percent disapproving.

Thirty-six percent of voters said the most important issue they consider when deciding who to vote for is the economy, followed by health care at 16 percent and social issues at 13 percent. Only 8 percent said impeachment was the most important issue for them.

The Emerson College poll surveyed 1,128 registered voters from Jan. 21 to 23.