WASHINGTON (AP) — Democratic presidential front-runner Joe Biden says it would be “great” to have a female vice president, but he won’t say whether he’d pick Sen. Kamala Harris for the No. 2 spot if he receives his party’s nomination. In an interview aired Friday on CNN, Biden said he thinks “it helps having a woman on the ticket.” Biden declined to get into specifics when asked whether it might be Harris, who confronted him at last week’s Democratic presidential debate over his stance on busing in the 1970s.