Walz introduced himself to the country and touted his accomplishments.
The third night of the Democratic National Convention continued the themes of joy and freedom.
A who's who of speakers, including a surprise speech from Oprah Winfrey, headlined the night aimed to showcase vice presidential nominee Minnesota Gov. Tim Walz.
"Coach Walz" brought his energy to the crowd touting his and Vice President Kamala Harris' vision for the future of the country.
With his quip about Trump’s age, Clinton reminds us of a historical oddity: He, Trump, and George W. Bush were all born within a few weeks of each other in summer 1946. Trump was born on June 14, Bush on July 6, and Clinton on Aug. 19.
—538’s Nathaniel Rakich
Bill Clinton noted he turned 78 years old earlier this week and is the oldest person in his family.
"And I am still younger than Donald Trump," he joked.
With Biden out of the race, Trump is now the oldest person seeking the White House.
Clinton is going off script pretty considerably -- not on the substance, but as if he's making little edits in his head along the way.
Bill Clinton pointed out he's younger than Donald Trump, who was born two months before him. Of course, he doesn't mention that both are younger than Joe Biden.
-ABC News' Rick Klein
Bill Clinton praised Biden for his work on a number of issues, but expressed thanks for his sacrifice in stepping aside.
"And then he did something that's really hard for a politician to do: he voluntarily gave up political power," he said.
Bill Clinton compares Biden to George Washington
"And George Washington knew that and he did it, and he set the standard for us serving two terms before it was mandatory. It helped his legacy and it will enhance Joe Biden's legacy."
"It's a stark contrast to what goes on in the other party," Clinton said.
