MADISON, Wis. (AP) -- The state Government Accountability Board has voted to consider regulating issue ads.

The move came Wednesday amid a Wisconsin Supreme Court race in which a study has said that businesses, unions and advocacy groups, which don t have to disclose who funds them, made 93 percent of the advertising expenditures through March 23.

Thomas Cane, a former state chief appeals judge who is vice chairman of the accountability board, said after the panel's move that he thinks "it's no longer the candidates who are controlling their elections."

Issue ads don't expressly urge a vote for or against a particular candidate, but they usually mention the name of a candidate.

Cane says board members need to study how changes would square with state and federal laws and court rulings.