MUSKEGON HEIGHTS, Mich. — Efforts to repeal a law that allows the state to take control of financially foundering local governments has placed the future of several cities and school districts in doubt.

State election officials are expected to decide by the end of the month whether a campaign against the law has collected enough signatures to qualify for the November ballot. If enough signatures were collected, the year-old law would be suspended until the public vote was held.

State-appointed emergency managers are now running four Michigan cities and two school districts, and several others local governments are candidates for intervention.

The law has sparked opposition from labor unions because emergency managers are allowed to modify union contracts.

Copyright 2012 The Associated Press.