Former President Joe Biden told his staffers, "We're not leaving the fight," during farewell remarks following Trump's inauguration on Monday.
Biden referenced President Donald Trump's inauguration remarks, which offered a scathing rebuke of the Biden administration while laying out Trump's immediate plans upon returning to office.
"We have a lot more to do. We heard the inaugural address today," Biden said in his remarks at Joint Base Andrews before getting on a plane with former first lady Jill Biden.
"We've got a lot more to do," Biden continued, before making the sign of the cross to laughs.
The former president urged his staffers to stay "engaged," whether that's in the public or private sector, academia or running for office themselves.
"We're leaving office, but we're not leaving the fight," Biden said. "You're smart, you're skilled, you're passionate and the country needs you again."
He said his dad taught him that a measure of a person is how quickly they get back up after getting knocked down.
"That's what we have to do right now. We've always done our best as Americans. We never, never, never give up, ever," he said.