"Trump and Biden Clash Over UAW Endorsement in Swing State"

After the United Auto Workers union endorsed President Joe Biden, former President Donald Trump criticized the union's president, prompting the Biden campaign to respond. Both campaigns are vying for support from union voters in battleground states. The UAW's endorsement is significant as union voters have been influential in past elections. Trump attacked the UAW's president on social media, while Biden's campaign accused Trump of having a "wounded ego." The back-and-forth reflects the importance of union support in the upcoming election.