(AP) A recall election has been officially ordered against embattled first-term Wisconsin Gov. Scott Walker after more than 900,000 signatures were collected on petitions to force a vote. The Government Accountability Board voted 5-0 Friday to order the recall against the Republican, a move that's been expected for weeks given the high number of signatures gathered between November and January. It took 540,208 signatures to trigger a recall. If a Democratic primary is necessary, it will be May 8. The actual recall vote then will be June 5. Walker was targeted for recall after he pushed through a law last year that effectively ended collective bargaining rights for most state workers. There have been only two successful recalls of governors in U.S. history.