MADISON, Wis. (AP) -- A Wisconsin state board has voted to accept recall petitions targeting three Democratic state senators which will force them to stand for election in July.

Opponents of the recalls argued Wednesday before the Government Accountability Board that widespread fraud in the collection of the signatures warranted invalidating the signatures.

The board rejected thousands of signatures, but not enough to disqualify the petitions. They voted to certify recall elections for Sens. Dave Hansen of Green Bay, Jim Holperin of Conover and Bob Wirch of Pleasant Prairie.

The board's decision can be appealed to circuit court but the Democrats' attorney says he doesn't know if an appeal will be filed.

The board has previously approved July 12 recall elections for six Republican senators. The election for the Democrats is set for July 19.