Have the floodgates opened? Another superdelegate for Obama:
Former U.S. Sen. John Melcher says he is going to cast his key Democratic Party superdelegate vote for Barack Obama.
Melcher is one of eight Montana superdelegates who can vote for whoever they please at the party's national convention this summer.
Melcher says he chose Obama because he believes the Illinois senator has been against the Iraq war since the start.
That's two in one day. Based on this NBC post after Wyoming Gov. Dave Freudenthal's endorsement, Obama has now picked up 12 superdelegates to Clinton's one since March 4.