AP Photo/Jeffrey Phelps
Kathryn Schulze wears a message written on tape over her mouth inside the state Capitol Monday, Feb. 21, 2011, in Madison, Wis. Opponents to Governor Scott Walker's bill to eliminate collective bargaining rights for many state workers are taking part in their seventh day of protesting.
Eric Thayer/Getty Images
Protesters rally inside the Wisconsin State Capitol February 21, 2011 in Madison, Wisconsin. A protest that began more than a week ago continued with a scheduled rally and concert by Tom Morello of Rage Against the Machine.
AP Photo/Jeffrey Phelps
Luke Balsavich holds a large sign outside the state Capitol Monday, Feb. 21, 2011, in Madison, Wisconsin.
AP Photo/Jeffrey Phelps
Protesters do yoga inside the state Capitol Tuesday, Feb. 22, 2011, in Madison, Wis.
AP Photo/Andy Manis
Protesters to Wisconsin Gov. Scott Walker's proposal to eliminate collective bargaining rights for many state workers demonstrate in at the State Capitol in Madison, Wis., Wednesday, Feb. 16, 2011.
H. Marc Larson,AP Photo/The Green Bay Press-Gazette
Wisconsin Education Association Council (WEAC) vice president Betsy Kippers leads a chant during a rally to protest Governor Scott Walker's budget repair bill, at the Brown County Courthouse in downtown Green Bay, Wednesday, February 16, 2011.
Gregory Shaver,AP Photo/Journal Times
People march around Monument Square in Racine, Wis. Thursday afternoon, February 17, 2011, during a union organized rally. More than 225 people attend the rally, according to a Racine police officer.
Jim Matthews,AP/The Press-Gazette
A man identified only as 'John the Ironworker', right, holds up a sign supportive of Wisconsin Gov. Scott Walker's budget-cutting initiatives while protestors shout slogans at Centerline Machining and Grinding in Hobart Tuesday, Feb. 15, 2011.
AP Photo/The Post-Crescent, Sharon Cekada
Appleton West High School students show support for their teachers at the school in Appleton, Wis. on Thursday, Feb. 17, 2011.
AP Photo/Andy Manis
State workers, union members and others watch a telecast in the rotunda at the State Capitol Tuesday, Tuesday, Feb. 15, 2011, in Madison, Wis. of a committee meeting on Gov. Scott Walker's proposal to cut the state budget.
AP Photo/Andy Manis
Protesters to Walker's bill yell at the entrance to the governor's office at the State Capitol in Madison, Wis., Thursday, Feb. 17, 2011.
Mark Hirsch/Getty Images
Teacher Cyndi Ehrhart (L) and Anne McClure (R) join protesters marching at the State Capitol building on February 16, 2010 in Madison, Wisconsin. Protesters were demonstrating against Wisconsin Gov. Scott Walker's proposal to eliminate collective bargaining rights for many state workers.
Mark Hirsch/Getty Images
Protesters filled the steps and grounds surrounding the State Capitol building on February 16, 2010 in Madison, Wisconsin.
Mark Hirsch/Getty Images
Democratic Wisconsin Senator Mark Miller waves to protesters marching at the State Capitol building on February 16, 2010 in Madison, Wisconsin.
AP Photo/Andy Manis
Wisconsin Rep. Joe Parisi, center, D-Madison, Friday, cheers on the crowd on the fourth day of large scale protests at the State Capitol in Madison, Wis., Friday, Feb. 18, 2011.
AP Photo/Wisconsin State Journal, John Hart
Wisconsin State Patrol officers are stationed outside the office of Governor Scott Walker Wednesday, Feb. 16, 2011 as thousands of demonstrators occupy the State Capitol building for a second day of protests.
AP Photo/Wisconsin State Journal/John Hart
Students from McFarland High School in MacFarland, Wis. join opponents of Walker's budget repair bill during evening demonstrations at the Wisconsin State Capitol in Madison, Wis. Wednesday, February 16, 2011.
AP Photo/The Post-Crescent, Sharon Cekada
Appleton West High School students protest in support of their teachers on Thursday, Feb. 17, 2011.
AP Photo/Wisconsin State Journal, John Hart
Opponents of Wisconsin Governor Scott Walker's budget repair bill march around the Wisconsin State Capitol in Madison, Wis. during a second day of widespread demonstrations Wednesday, February 16, 2011.
Scott Anderson,AP Photo/The Journal Times
Kenosha Education Association Executive Director Joe Kiriaki and about 45 others picket in front of the home of state Sen. Van Wanggaard in Racine, Wis., Monday, Feb. 14, 2011.
AP Photo/The Oshkosh Northwestern, Adam Jungwirth
Emilie Steavpack shows her support for Gov. Scott Walker during an anti-Walker protest at the statehouse in Madison, Wis., on Thursday, February 17, 2011. Steavpack, a Walker supporter and University of Wisconsin-Madison student, said some protesters taunted and slapped her.