President Joe Biden offered up a few surprises in his farewell address. Instead of simply summing up his term in office, he warned Wednesday about the increasing influence of the ultrawealthy, criticized disinformation on social media and called for continuing the fight against climate change.

After four years in the White House – and a half-century in Washington – President Joe Biden has said farewell.

"Today, an oligarchy is taking shape in America of extreme wealth, power, and influence that literally threatens our entire democracy," the president said.