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As Wisconsin’s pro-union protests rage, a huge crowd in Ohio is gathering Tuesday for the event “Rally to Save Ohio’s Middle Class.” The movement, which reportedly could draw 20,000 people, is being documented live on Facebook. The AFL-CIO also is tweeting the event.

Protesters are demanding lawmakers drop a bill that would end Ohio public employees’ right to collective bargaining. An Ohio Senate committee has said it will revise and vote this week on the legislation that would affect about 350,000 state workers, teachers, public safety employees and others.

And in Indiana, lawmakers have stooped to name-calling in a debate the pits union forces against legislators who want to undo union rights.

Though the stakes are different in each state, what is clear is that a fight in Wisconsin has ballooned into a huge national debate pitting Republicans against Democrats. President Barack Obama voiced his support for public workers Monday, and the liberal activist group Moveon.org has been staging demonstrations across the nation in support of unions.

The debate is loaded with nuance and complexity, and informed by the history of unionizing in the United States, Slate points out. USA Today analyzed the numbers and on Tuesday reported that Wisconsin is one of 41 states where public workers earn higher average pay and benefits than private workers in the same state.

The Columbus, Ohio, City Council opposes legislation in its state because members say it would hurt families, CNN affiliate WBNS-TV in Columbus reported. The council said it wants more discussion on ways to fix the state budget shortfall.

Ashley Fantz, cnn