Al Sharpton versus the NAACP? Not in my wildest dreams…

The Rev. Al Sharpton yesterday said the Democratic Party would commit a “grave injustice” if it seated delegates from Florida and Michigan at the party’s national convention – and he threatened a march on the party’s Washington headquarters…

Sharpton wrote: “I firmly believe that changing the rules now and seating delegates from Florida and Michigan at this point would not only violate the Democratic Party’s rules of fairness, but also would be a grave injustice.”

He added that protestations about being disenfranchised, a point made by [NAACP head Julian] Bond in a separate letter to Dean Tuesday, “should have been made many months ago, before the decision was made to strip these states of their delegates…

He said his National Action Network is discussing a possible march on DNC headquarters, adding, “This smacks of the same stuff we accused the Republicans of in Florida in 2000 . . . changing the rules.”

Black superdelegates are getting it from both sides too. Obama’s been careful to keep himself above the fray of identity politics, but if you want to see the depths to which some of his supporters have sunk, chew on this:

[Rep. Emmanuel Cleaver] said Rep. Jesse Jackson Jr. of Illinois had recently asked him “if it comes down to the last day and you’re the only superdelegate. … Do you want to go down in history as the one to prevent a black from winning the White House?

“I told him I’d think about it,” Cleaver concluded.