re: What's changed
You know what? Having to spend half the time here trying to bring people up to speed who have obviously read only a single source on something is getting a bit old, too.
Here's a list of Mutha's statements over time. I will concede that his position seems, to say the least, inconsistent over time.
A resolution (H.J. RES 73) demanding immediate pullout is headed for the House floor, with the enthusiastic support of Republicans who want to see this specific idea put to a vote in front of everyone. The trickling sound you hear is from bladders leaking down Democratic legs. We'll see what happens.