MADISON, Wis. (AP) -- Wisconsin's chief elections official says he doesn't know how long it will take to review roughly 1.9 million signatures that have been submitted to recall Gov. Scott Walker and five others.

The law requires the review to be done in 31 days, but Government Accountability Board Director Kevin Kennedy said Tuesday it will take longer than that.

Kennedy says the board will go to court soon to seek the delay and ask that all six elections be held on the same day.

Democrats who spearheaded the recall say the review should be done as quickly as possible.

Kennedy says it will take several days just to scan in the signatures for the review. The petitions will be posted on the GAB website once they are scanned.