So we have a political party, the Dems, in a Catch-22: don't propose anything and get criticized for not having a plan only to then come up with a plan and get criticized for the plan. Which is what's happening. Just check out the excitable Andrew Sullivan, probably one of the biggest critics of the Administration, who has taken to calling the Dems "useless" due to their inconsistent bouts of incoherence.
Now that Pelosi has joined Team Murtha, the Republicans have been dancing the happy dance of joy. While Murtha himself is so credible he couldn't be Swift Boated (although they tried) Pelosi saying she supports him gives them a new opening: the stance can't be good because it's also supported by a San Francisco Liberal. The Socratic logic behind it follows like so: Murtha, a decorated war vet, BFF of the military, and dangerous war critic proposes Plan A. Nancy Pelosi, a wine sipping latte drinking effete member of the liberal elite representing a city full of liberals and gays who hate America, supports Plan A. Therefore, Murtha must be a wine snipping, latte drinking effete member of the liberal elite. Since Pelosi made her announcement, they've been trying to paint into Murtha into such a liberal that it'll come off like all he does is attend anti-war rallies wearing a "Free Mumia!" t-shirt and chanting "No Blood for Oil!" with Jane Fonda and Cindy Sheehan. This despite the fact if Murtha were to get near a rally, he'd probably beat the living snot out of the protestors and make them eat their paper mache puppets for lunch, dinner, and after dinner snacks.
Image from Blogs of War