Speaking to a socially distanced crowd in Philadelphia, Biden said: “I was very happy to have the moniker of being known as Pennsylvania’s third senator.
“I know Philadelphia well. I married a Philly girl by the way.”
Biden’s supporters immediately started honking horns in their vehicles to show their approval.
Then, looking down at his jacket, Biden adds, “by the way I got my Eagles jacket on.”
This public blunder prompted a swift rebuke on Twitter.
Zach Parkinson, the deputy director of communications for President Donald Trump’s campaign, tweeted: “This ‘Eagles’ jacket Biden claims he’s wearing to try and show how much he’s in touch with Pennsylvania?
“It’s a Delaware Blue Hens jacket.”
Biden attended the University of Delaware, graduating from the institution in 1965 with a double major in history and political science.He wrote about playing in the uni’s freshman football team in his memoir Promises to Keep.