http://firstread.msnbc.msn.com/archive/2008/04/23/935854.aspx*** It’s a bird, it's a plane, it’s another Obama superdelegate: Before the sun even rose, the Obama campaign rolled out the endorsement of Oklahoma Gov. Brad Henry, a superdelegate and someone from one of those uncontested red states. Interestingly, Oklahoma is a state Clinton carried on February 5 -- by A LOT. By the way, does Clinton have an interesting superdelegate endorsement or two in her back pocket right now? She just hasn't had a BIG endorsement in weeks. Of the remaining "gets" the one that seems most likely to come to her side (and would serve as a real boost) would be John Edwards, although he’s not a super. Newsweek's Howard Fineman said on MSNBC last night Elizabeth Edwards is likely to show up at a Clinton rally or two, but can she convince the ex-candidate to come over? It's a tough decision for John Edwards since Obama is such a heavy favorite in his home state.