Biden reveals he and Obama celebrated granddaughter's graduation

Biden reveals he and Obama celebrated granddaughter's graduation

Former Vice President Joe BidenJoe BidenTop adviser on Sanders: 'He's always been underestimated' 'The Simpsons' pokes fun at Trump's feud with 'the squad' 'Forever war' slogans short-circuit the scrutiny required of national security choices MORE revealed on Tuesday that his family and former President Obama's family got together last weekend to celebrate the high school graduation of his granddaughter Maisy Biden and of Sasha Obama. 

“Her best friend is Sasha Obama. Barack and Jill and the whole family, we had a whole get together," Biden told a crowd in Davenport, Iowa.

Maisy Biden and Sasha Obama graduated from Washington, D.C.'s Sidwell Friends School on Sunday. 

The former vice president cited the graduation as his reason for not attending the Iowa Democratic Party's annual Hall of Fame dinner last week. 

“One of my competitors criticized me for not going to Iowa to talk for 5 minutes," Biden told a group of lobbyists and donors in Washington on Monday. "My granddaughter was graduating. It was my daughter’s birthday. I would skip inauguration for that." 

While Biden was not present at the event, he appeared to be on the minds of his Democratic primary opponents, who took numerous opportunities to indirectly criticize him over the weekend. 

Biden's visit to Iowa on Monday marked his second visit to the Hawkeye State as a 2020 contender. 

The visit also coincided with President TrumpDonald John Trump Former US ambassador: 'Denmark is not a big fan of Donald Trump and his politics' Senate Democrats push for arms control language in defense policy bill Detroit county sheriff endorses Booker for president MORE's visit to the state. 

The two men criticized each other on Tuesday, with Biden calling Trump "an existential threat to America," and Trump saying the former vice president was "slower than he used to be."