Sen. Kamala Harris Kamala HarrisNational postal mail handlers union endorses Biden The Hill's Campaign Report: Biden asks if public can trust vaccine from Trump ahead of Election Day | Oklahoma health officials raised red flags before Trump rally Jim Carrey to play Biden on 'Saturday Night Live' MORE is making a return trip to “The Late Show,” as speculation of a 2020 White House bid swells around the California Democrat.

Harris will sit down with Stephen Colbert on the CBS late-night show on Jan. 10, the network announced Thursday.

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Harris is poised to appear the same night as another guest with a political connection. Actor Bradley Whitford — who starred as fictional White House deputy chief of staff Josh Lyman on NBC’s long-running political drama, “The West Wing” — is also booked for next Thursday’s show.

Harris has been floated as a possible 2020 presidential contender in what is likely to be a crowded Democratic field. It won’t be the lawmaker’s inaugural appearance on Colbert’s show — she was also a guest last April.

Last month, a pair of prominent Democrats made headlines with their 2020 announcement on “The Late Show.”

After Colbert egged on Julián Castro, a former Housing and Urban Development secretary, about whether he would be running in the next presidential race, his twin brother, Rep. Joaquin Castro Joaquin CastroDemocratic lawmakers call for an investigation into allegations of medical neglect at Georgia ICE facility Lawmakers of color blast Trump administration for reportedly instructing agencies to end anti-bias training Top House Democrats call for watchdog probe into Pompeo's Jerusalem speech MORE (Texas) replied, “I’ll speak on his behalf here, he’s going to run for president.”