At Salon:

Unions in Wisconsin made history by mobilizing the recall against Gov. Scott Walker, but it’s too soon to say whether the state will follow through and kick him to the curb. One thing that could work in his favor: The inability of some of the state’s powerful unions to consolidate behind a Democratic candidate to oppose him. Having come this far, some labor activists now question whether the best way to flex their muscle is to sit out the election altogether.

This is the drama unfolding at the Teaching Assistants Association, which represents graduate students and project assistants from the University of Wisconsin-Madison. No union is more identified with the anti-Walker mobilization. Days after he introduced his bill to gut collective bargaining, TAA members showed up at the state capitol, sleeping bags in hand, and kicked off what became a 16-day occupation. That emboldened Democratic senators to flee the state to deny Walker a quorum – bringing national media attention to the controversy.

Now a month before the May 8 primary, two Democrats, former Dane County Executive Kathleen Falk and Milwaukee Mayor Tom Barrett, are neck-and-neck at the front of the pack. And TAA members are split on what to do about it.

Here’s the rest.