COLUMBUS, Ohio — The union-backed group that successfully fought to defeat Ohio's contentious collective bargaining law spent almost $30 million in the fall ballot campaign.

Campaign finance reports filed Friday show We Are Ohio raised about $30 million in its effort and received another $12 million in in-kind contributions.

More than 61 percent of Ohio voters rejected the collective bargaining law in last month's election. The bill would have restricted the bargaining abilities of more than 350,000 unionized public workers.

The group that defended the law was far outspent. Building a Better Ohio reported spending more than $11 million through its political action committee.

The Republican-backed coalition of business groups and others also trailed the law's opponents in fundraising — bringing in roughly $11 million in donations and about $570,000 in in-kind gifts.