Secretary of state, acting administrator for USAID, acting lead archivist, acting national security adviser. Marco Rubio, the politician Trump once dubbed “little Marco,” has become the president’s go-to guy for big roles in the administration. But Democrats are casting doubt on whether it is possible for Rubio — or anyone — to balance all of those jobs.

Host Margaret Brennan asked Sen. Tammy Duckworth whether she had “confidence that [Rubio] can juggle all four of the jobs that he now has for an indefinite period of time.”

“No. There’s no way he can do that and do it well, especially since there’s such incompetence over at DOD with Pete Hegseth being secretary of defense, and just the hollowing out of the top leadership,” said Duckworth, who represents Illinois and sits on the Senate Armed Services Committee, during a Sunday interview on CBS’s Face the Nation. “There’s no way he can carry all that entire load on his own.”