First, he reversed course and capitulated on FISA, not just turning back on the Constitution, but on the whole concept of "leadership". Personally, I like to see presidents who 1) lead, and 2) uphold their promises to protect the Constitution.
Then, he took his not-so-veiled swipe at MoveOn in his "patriotism" speech.
Finally, he reinforced right-wing and media talking points that Wes Clark had somehow impugned McCain's military service when, in reality, Clark had done no such thing.
Could've fooled me, and maybe he is. Maybe what looks like cowering to me is really part of that "moving to the center" stuff everyone keeps talking about. But there is a line between "moving to the center" and stabbing your allies in the back out of fear of being criticized. And, of late, he's been doing a lot of unecessary stabbing, betraying his claims of being a new kind of politician. Not that I ever bought it, but Obama is now clearly not looking much different than every other Democratic politician who has ever turned his or her back on the base in order to prove centrist bona fides. That's not an indictment, just an observation.
I'll still vote for him
See? This is what is wrong with Liberals. Kos says I won't support you, Darnnit! But you will still get my vote! He even says Obama may yet still get his money. What the heck? What other kind of support is there? This is sort of like a UN sternly written letter or someone yelling STOP or I'll Yell STOP again!