Organizers of a November ballot proposal that would require voters' approval to build a bridge linking Detroit and Windsor, Ontario, say they have enough petition signatures to place the initiative before voters.
Mickey Blashfield, director of The People Should Decide ballot committee, said Thursday the group has collected more than 420,000 signatures.
U.S. and Canadian leaders announced an agreement last week to build the bridge at no cost to Michigan. Gov. Rick Snyder is among the backers of that plan.
Blashfield has criticized Snyder's efforts on the bridge in the past.
The Ambassador Bridge's owners are fighting Snyder's efforts, pushing the ballot proposal and running an aggressive ad campaign saying it would cost taxpayers a lot of money.
Detroit International Bridge Co. wants to add a span of its own.
Copyright 2012 by The Associated Press. All rights reserved.