MADISON, Wis. (AP) -- A recall election to oust Republican Gov. Scott Walker from office could cost at least $9 million.

The state Government Accountability Board asked local clerks to estimate the costs of a possible recall election based on statewide elections in November 2010 and April 2011. All 72 county clerks reported back with a total estimate of $2.3 million. About 92 percent of municipal clerks responded with an estimate of $5.8 million. The GAB estimated its costs at $841,349.

Democrats want to throw Walker out of office over his contentious collective bargaining bill.

State Rep. Robin Vos, a Rochester Republican and co-chairman of the Legislature's Joint Finance Committee, says the recall isn't worth it. State Democratic Party Chairman Mike Tate counters that Wisconsin can't afford to have Walker as governor.