WASHINGTON (AP) — President Joe Biden picked up an endorsement from the United Auto Workers union Wednesday, an important boost to the Democratic president's reelection bid as he pushes to sway blue-collar workers his way in critical auto-making swing states such as Michigan and Wisconsin.

"I'm honored to have your back and you have mine," Biden said to the cheering crowd. "That's the deal."

Biden spoke as the union closed out a three-day gathering in Washington to chart its political priorities. The event follows Tuesday's primary vote in New Hampshire, where Republican front-runner Donald Tr...