Biden warns of a 'great concern' in farewell address

President Joe Biden issued a dire warning to the American people about the coming four years under the next Donald Trump administration, in his farewell address on Wednesday — even as he tried to strike the most optimistic tone he could that America would remain strong after he left.

"I'm so proud of how much we've accomplished together for the American people, and I wish the incoming administration's success because I want America to succeed," said Biden. "That's why I have held my duty...