WESTERVILLE, Ohio — Fifty percent of Americans said they would vote for the Democratic presidential nominee over President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE, according to a new Georgetown University Politics Battleground Poll.

The survey, which was released hours before the fourth Democratic primary debate, also found that 42 percent of respondents would choose Trump over the eventual Democratic nominee.

The same poll found that 56 percent of Americans said they had an unfavorable view of Trump, while 42 percent said they viewed him favorably.

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The survey also found that 43 percent of voters approve of Trump's overall job performance, while 53 percent disapprove.

Trump is fielding criticism on multiple fronts as he defends his decision to withdraw U.S. troops from northern Syria and as Democrats conduct an impeachment inquiry into him.

Democrats will likely hit Trump on the debate stage on Tuesday on his pullout from Syria as well as on his dealings with Ukraine.

Former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE has become a major part of the impeachment inquiry, with Trump accusing the 2020 Democratic presidential candidate of thwarting a Ukrainian prosecutor’s investigation into an energy company that employed his son Hunter Biden as a board member.

Hunter Biden said in an interview on Tuesday that he misstepped by getting involved with foreign companies, saying that it gave critics an opening to attack his father politically.

The Georgetown University Politics Battleground Poll was conducted from Oct. 6 to Oct. 10 among 1,000 likely voters. The poll's margin of error is 3.1 percentage points.