Former Vice President Joe Biden Joe BidenPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Hillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Fox News poll: Biden ahead of Trump in Nevada, Pennsylvania and Ohio MORE is giving a boost to the Democrat running in Tuesday's special election for Ohio's 12th Congressional District, recording a robocall for Danny O’Connor.

“Ohioans need leaders like Danny, who will stand up for working families, protect critical services that help folks get ahead and work together to find common ground in Congress,” Biden says in the call, which was first reported by Politico.

He goes on to emphasize that an O’Connor victory would bring Democrats one step closer to taking control of the House.

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O’Connor is facing off against Republican state Sen. Troy Balderson for a seat that has been in the GOP’s hands since 1983. President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE won the district by 11 points in 2016.

Polls have O’Connor and Balderson neck and neck going into election day. The Cook Political Report rates the races as a “toss up.”

Biden, who had a 57 percent approval rating nationally according to a December CNN poll, could be an effective surrogate for the party in centrist districts across the country.

Republicans hope campaign appearances by Trump and Vice President Pence, who have frequently tried to tie O’Connor to House Minority Leader Nancy Pelosi Nancy PelosiPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' On The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline Trump signs largely symbolic pre-existing conditions order amid lawsuit MORE (D-Calif.), will help push their candidate over the finish line.