The Humane Society of the United States has contributed nearly $93,000 toward a Missouri initiative that would make it harder for state lawmakers to change voter-approved measures.

State Ethics Commission records show the contributions come after lawmakers this year repealed and replaced key parts of dog-breeding law passed by voters last November. The Humane Society of the United States had given more than $2 million toward the dog-breeding initiative and was not pleased when Missouri lawmakers
so quickly changed it.

The latest initiative would require a three-quarters vote of the House and Senate - instead of a simple majority - to overturn most voter-approved measures. Supporters still need to gather enough signatures to qualify the initiative for the 2012 ballot.

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