Pelosi and the Dims think Kelo is a great decision - why wouldn't they? After all, it undermines private property rights, so of course Pelosi and the rest of them, who would turn all private property over to the state given half a chance, are going to support it.
However, they know it's a very unpopular decision, and therein lies the dilemma - how to support it without looking like they're supporting it. In the old Dinosaur Media world, they'd just let the furor die down and then start the re-education campaign in the press, probably by painting opponents of Kelo as racists, the privileged rich and white standing in the schoolhouse door of government making life better for all minorities by ensuring property is "fairly" used. By doing this, they could probably realistically hope to make Kelo "untouchable" in the way Roe vs. Wade is; elevating to it practically a sacrament. That would be in a world where all information was controlled by CBS, ABC, NBC, the Washington Post and the New York Times.
However, in today's world of other media sources, they could never make that fly. And so they're reduced to appealing to the "sanctity of the courts", the "GOP abuse of power", and "Republican war on the judiciary" canards. Comments like Pelosi's will only get shriller and more hysterical as the Republicans continue to press the issue. Start looking for the playing of the "dividing the country" card, the "why are the Republicans wasting time on this while US troops are dying in Iraq" card, the push polls "showing" that no one cares about Kelo, and, once all of the above fail to gain any traction, the race card as described above. Once that one comes down we'll know their backs are against the wall.
I've been talking with some of my friends who I would consider apolitical, who have never expressed an opinion on any political topic through three Presidents, four wars, and the reign of Clintigula I. But they have all had opinions on Kelo. They are homeowners, and they see this law as an attack on their very way of life.
People really care about this one. If the Donks don't get on the right side of this issue, they are finished as a national party.