6:32 p.m.: A Washington superdelegate endorses Obama -- 41.5 left. Also, Rep. Jim Clyburn will endorse Obama tomorrow.
4:16 p.m.: An email from the Obama campaign tells me they've picked up another Florida superdelegate with 1/2 vote. Delegates needed is down to 42.5.
Yet another UPDATE: With another Michigan super (1/2 vote) on board, Obama is 43 delegates away from securing the majority of 2,118.
UPDATED: Three more superdelegates have announced support for Obama this morning. Only 44 43.5 left to go. (I had to correct the post. The latest super is from Michigan so only counts for 1/2. Have to give a huge shout out to the writers at Democratic Convention Watch. Keeping track of this is not easy -- yet, they do it masterfully.)
We'll keep updating the tally over the next couple days as Obama approaches the magic number of 2,118.
Importantly, the unifying is beginning as evidenced Taegan Goddard's very interesting quote of the day from Tom Vilsack "a national co-chairman of Sen. Hillary Clinton's campaign":
It does appear to be pretty clear that Senator Obama is going to be the nominee. After Tuesday's contests, she needs to acknowledge that he's going to be the nominee and quickly get behind him.