NEW YORK (AP) -- Kissing babies, attending townhall meetings and chatting with Dave.
Monday was Barack Obama's turn to be on C-B-S's "Late Show with David Letterman."
Letterman asked the Democratic presidential candidate and Illinois senator if there had been any talk about him sharing the White House ticket with New York Senator Hillary Rodham Clinton. Obama said he didn't believe in running for second.
He also told Letterman that his family is withstanding the rigors of campaigning. But Obama jokingly conceded that his wife has started referring to him as "her first husband."