"Wisconsin Democrats on Thursday fled the statehouse in an effort to prevent legislators from reaching a quorum and passing a bill put forth by Gov. Scott Walker (R), which would cripple the collective bargaining rights of public unions.
The move produced a frantic political drama, as state troopers were reportedly sent out to find the fleeing lawmakers and Walker hinted that the National Guard would be called in to fill the void left by protesting union workers." -- from the Huffington Post
EDITED TO ADD:
Democrats Missing, Wisconsin Vote on Cuts Is Delayed -- NYTimes