MADISON, Wis. – Wisconsin Gov. Scott Walker wants state Superintendent Tony Evers to revoke the teaching certificate of a Middleton-Cross Plains teacher who was caught watching and sharing pornography at school.

He sent a letter to Evers this week urging him to move forward with license revocation proceedings against Andrew Harris, who was busted in 2010 for viewing sexually explicit images on school computers. Middleton-Cross Plains school officials terminated Harris after the incident, but the teachers union fought the case and an arbitrator in 2012 reinstated the teacher.

The district spent hundreds of thousands of dollars in legal fees defending its decision to terminate Harris. But the teacher returned to the classroom this week, the Associated Press reports.

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School officials don’t want Harris, and neither do parents. The district has been receiving a flood of complaints from parents at Kromrey Middle School, where Harris now teaches, according to media reports.

The district’s last line of defense lies with Evers. School officials submitted a request to revoke Harris’ license nearly four years ago, but the state Department of Public Instruction – headed by Evers – has yet to act.

The hesitation likely is due to Evers’ close ties to the teachers union. The Wisconsin Education Association Council, the statewide teachers union, was instrumental in electing Evers to office, twice.

Essentially, Evers must chose between parents and school leaders who are concerned about a porn-viewing teacher in their school, and the Wisconsin Education Association Council, which is willing to go to the mat to defend any teachers accused of just about anything.

Walker’s letter only increases the stakes of Evers’ decision by focusing the public’s attention on this important matter.

What Evers ultimately decides will certainly say a lot about his priorities as the top education official in the Badger State.