WILMINGTON, Del. -- Tuesday marked the eighth time that Vice President Joe Biden has cast a ballot for himself in a statewide election in Delaware. Asked if it was also the last, the former senator grinned and responded: "I don't think so."
Biden, 69, has not ruled out running for president in 2016.
He arrived to vote at Alexis I. duPont High School just a few minutes after the polls opened, joined by some of his family, including wife Jill and son Beau.
Biden said he was feeling good about the outcome Tuesday, and encouraged Americans to exercise their right to vote.
"And people who are standing in line in a lot of places, I encourage you to stand in line as long as you have to," he added. Democrats are counting on a massive turnout operation in swing states to help carry them to victory.
Biden had about a 11-minute wait to take his turn in the voting booth. A poll worker apologized that he had to stand in line, but he brushed it off. "I offered him my spot!" a woman waiting ahead of him said.