(Updated) WI Gov. Scott Walker now "open to changes"

UPDATE: Goldy chimes in on the action in Madison from his new perch @ SLOG:

As many as 30,000 protesters converged on the state Capitol in Madison, Wisconsin today, as organizers promised to keep up the pressure. Word is that teachers in Milwaukee and other cities are preparing to join Madison teachers in a mass walkout tomorrow, despite threats from administrators of disciplinary actions.

Somehow, I don't see the national guard teaching Wisconsin's school children.

Did the teabaggers ever sustain crowds this big for so long? I don't think so. It remains to be seen if politicians and the media will take these protesters as seriously as they do their Second-Amendment-remedy-threatening counterparts.

Greg Sargent:

With protests in Wisconsin raging over Governor Scott Walker's push to strip public employees of their union rights, he first tried claiming that the tens of thousands of protestors are not significant because there are "about 5.5 million people in the state."

* But later in the day he started to waver, claiming he is now open to changes to the bill.

* This may be because other Wisconsin Republicans may be preparing to desert him. Much more on this story tomorrow.