MADISON, Wis. (AP) -- Wisconsin state election officials have delayed a final decision on three recall petitions targeting Democratic senators, putting the date of the recall elections in doubt.

A Government Accountability Board spokesman said Friday the board's staff needs more time to review factual and legal challenges to the petitions targeting the senators. Democrats have alleged that circulators used widespread fraud and misrepresentation to gather signatures.

The board will still review challenges to three petitions targeting GOP senators Tuesday, but won't decide on the other petitions until June 8 at the earliest.

While the board originally planned to hold recall elections on July 12, possible court challenges could push the date further into the summer.

Three Democrats and six Republicans are targeted for their opposition to or support for a contentious anti-union bill.