PARTISAN PETRAEUS???

ThinkProgress makes a great catch once again. On The Chris Matthews Show, Andrea Mitchell claimed that Gen. Petraeus recently had a special meeting with the Senate GOP Caucus and, as Mitchell put it, "General Petraeus has persuaded them that for all intents and purposes, they can’t vote a withdrawal before September."

Did the Senate Democrats have the same opportunity? Was this visit by Petraeus in response to a request by the GOP Caucus or from the White House?