DENVER, Colorado (CNN) -- Sen. Joe Biden hammered Republican presidential candidate John McCain as he accepted the Democratic nomination for vice president Wednesday.
Biden rattled off a list of McCain's positions on issues ranging from taxes to alternative energy, repeatedly saying, "That's not change; that's more of the same."
Sen. Barack Obama joined Biden onstage at the end of his speech, the campaign announced, marking his first appearance in person at the convention that nominated him to be the first African-American to lead a major party ticket for the White House.
Biden praised Obama as a leader who had been right on a wide range of issues, including Afghanistan.
Biden, a six-term senator from Delaware, also talked about lessons he had learned from his parents, including one instruction from his mother, now 91, who was in the hall for the speech.
Biden said his mother told him when he was a child that when bigger kids beat him up, he should go back out and "bloody their noses so you can walk down the street the next day."
"That's true," she said, nodding.
Biden's son Beau gave a speech nominating his father, introducing him as "my friend, my father, my hero, the next vice president of the United States, Joe Biden." Beau Biden, Delaware's attorney general, is a captain in the Army National Guard and will soon return to Iraq.
Joe Biden entered to the strains of the song "Ain't That America" by John Mellencamp.