I always love these sorts of "do-over" polls, and PPP has a particularly good one:

We'll have our full poll on the Wisconsin conflict out tomorrow but here's the most interesting finding: if voters in the state could do it over today they'd support defeated Democratic nominee Tom Barrett over Scott Walker by a 52-45 margin.

Barrett, the mayor of Milwaukee, of course lost to Walker, by a very similar spread, 52-47. Tom Jensen identifies two important shifts: First, respondents in union households (about a third of the sample) now prefer Barrett by a 64-33 margin, but when asked how they voted in 2008, only went to Barrett 54-40. You gotta wonder about that one-third of union household voters who still support Walker... but nonetheless, this is a big shift, and Walker is doing wonders when it comes to energizing our side.

The other change Tom calls out is that even Republicans are starting to sour on Walker. They say they went for him by a 93-3 spread in 2010, but now only back him 87-10 - that is to say, 10% of Republicans wish they could have voted for the Dem instead.

I'd also like to point out one other detail. Independents tested here claim they voted for Walker by a 45-44 margin last year. In reality, though, exit polls showed indies backed Walker by a far bigger 56-42 spread. So somewhere between last year's election and now, around 11% of independents could no longer find it in their hearts to say they backed Walker. Now, some of these in PPP's poll simply didn't vote last time, and some I'm sure genuinely don't remember. But some proportion of independents just don't want to tell a pollster that they pulled the lever for Walker four months ago.

As far as the "re-do" question goes, indies favor Barrett by a 49-44 spread. So it looks like (for the moment) Walker's "base" among independents is around 44-45%, but about half of the indies who can't say what they were up to in 2010 are now professing to prefer Barrett. This means Gov. Walker is pulling off a pretty impressive trifecta: He's alienating members of his own party, he's struggling with independents, and he's firing up people who comprise a key part of our base. While David Koch surely approves, if Scott Walker ever wants to get re-elected, he's definitely doing it wrong.