Former Vice President Joe Biden is the only top Democratic presidential contender who would beat President Trump in Ohio, according to a new poll. 

Biden leads Trump 50 percent to 42 percent, according to a Quinnipiac University poll released Thursday. Some other top Democratic candidates poll extremely close to the president in the swing state, but do not lead. 

In a match-up between Trump and Sen. Bernie Sanders (I-Vt.), 46 percent of Ohio voters surveyed said they would back Trump and 45 percent would back Sanders, the poll found. Similarly, 46 percent would choose Trump and 45 percent would choose Sen. Elizabeth Warren (D-Mass.) in a match-up between the two.{mosads} 

The poll found that Sen. Kamala Harris (D-Calif.) and South Bend, Ind., Mayor Pete Buttigieg (D) tie the president, with all the candidates receiving 44 percent in hypothetical head-to-head match-ups.

Of Democratic or Democratic-leaning voters. Biden holds a 17-point lead in the Democratic primary, with 31 percent of voters saying they would choose the former vice president for the nomination. Sanders and Harris finished tied for second with 14 percent each, with Warren in third with 13 percent.

“Former Vice President Joseph Biden calls himself a blue-collar guy,” Quinnipiac University Poll assistant director Peter Brown said in a statement. “With Ohio certainly a blue-collar state, it is no surprise he is the Democrat who runs best against President Donald Trump and is solidly ahead in the Democratic primary in the Buckeye State.” 

“Biden runs best against President Trump in every Quinnipiac University state poll so far,” he added. “To get reelected, Trump will need to win the industrial Midwest. Ohio certainly is key to that plan.”

Quinnipiac surveyed 1,431 Ohio voters between July 17-22. The results have a margin of error of 3.2 percentage points. 

There are more than two dozen candidates running for the Democratic nomination.

Biden will be one of 20 to square off in the second Democratic primary debates in Detroit next week.