Lots of juicy details in this AP article including:
The senator's remarks came in response to a question from Democratic Rep. Nydia Velazquez who said she believed the best way for Obama to win over key voting blocs, including Hispanics, would be for him to choose Clinton as his running mate.
"I am open to it," Clinton replied, if it would help the party's prospects in November.
and:
Obama effectively secured the magic number Tuesday, based on a tally of pledged delegates, superdelegates who have declared their preference, and another 15 superdelegates who have confirmed their intentions to The Associated Press.
It also included delegates Obama was guaranteed as long as he gained 30 percent of the vote in South Dakota and Montana later in the day.
Clinton says she's open to being Obama's VP