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 will tie himself to former President Obama and tout his electability during Wednesday night's debate, according to senior Biden campaign officials.

"You're going to hear the vice president really make a case for the progressive success of the Obama administration, and the belief that it laid an important foundation for tackling the problems and the challenges that we're facing in the world today," a senior Biden campaign official said, referring specifically to the Affordable Care Act.

Senior campaign officials also said they plan to highlight Biden's foreign policy experience.

ADVERTISEMENT

"We believe that Americans are looking for a leader, somebody who can put a steady hand on the wheel," the official said. "That's something that you'll hear him talk about in the context of foreign policy."

Sen. Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE (D-Mass.) and South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegBillionaire who donated to Trump in 2016 donates to Biden The Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November Buttigieg stands in as Pence for Harris's debate practice MORE have encroached on Biden's front-runner status, rising in a number of state and national polls.

However, Biden campaign officials brushed off other candidates' recently growing popularity, arguing that Biden's numbers have remained the most consistent out of all the candidates throughout the campaign.

Warren has become the race's progressive front-runner, most notably pushing for a "Medicare for All" system and a wealth tax.

Biden's campaign has repeatedly criticized Warren's health care plan, and in turn, has pushed for building upon ObamaCare.

ADVERTISEMENT

"You have seen, frankly, from elections in Virginia, and I would even say elections in Louisiana, that running and building on the success of the Affordable Care Act of ObamaCare and not Medicare for All is how we win elections," another senior campaign official said.

Campaign officials also stressed Biden's electability, citing polls showing voters believing Biden is the best candidate to beat 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 in a head-to-head match-up. They also pointed to polling showing that some supporters of other candidates believe Biden is the best chance to defeat Trump.

"Those are gettable voters for us to move in December, in January," a third official said.