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 appear on “The Late Show with Stephen Colbert Stephen Tyrone ColbertColbert implores Pelosi to update 'weaponry' in SCOTUS fight: 'Trump has a literal heat ray' The Hill's Morning Report - Sponsored by Facebook - Washington on edge amid SCOTUS vacancy Juan Williams: Democrats need to bury their divisions MORE” on Sept. 4, the first late-night appearance by the former vice president since he announced his campaign launch in April, according to Deadline.

The appearance will follow a series of public gaffes by the former vice president, including most recently mistaking New Hampshire for Vermont. The gaffes do not appear to have affected his standing in most polls, which have Biden as the front-runner.

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But a Monmouth poll released Monday shows Biden in third place for the first time in the cycle, behind Sens. Bernie Sanders Bernie SandersSirota reacts to report of harassment, doxing by Harris supporters Republicans not immune to the malady that hobbled Democrats The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election MORE (I-Vt.) and 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.), although the three are in a statistical tie.

Biden has appeared on the show twice before, with his first appearance in September 2015 for the show’s third episode, wherein Biden discussed his son Beau’s death from brain cancer that May. The former vice president also appeared on the show in 2017, when he said of the Trump presidency, “God willing, it will go down as the single exception in American history.”

The Biden campaign confirmed the details of his upcoming appearance to The Hill.

--This report was updated at 3:10 p.m.