Some lawmakers want to cap benefits, make workers pay in more and work longer in life. Critics argue, you can't do that since benefits are guaranteed by the state constitution.
They warn the whole thing will end up stuck in court instead of fixing the problem. Then, the state will be in an even bigger mess than it is now.
Critics also say the plan doesn't address everything, so they're not happy about having to come back again and do it all over again in the future. Speaker Michael Madigan (D) says he plans to call the bill for a full vote Thursday.
It then heads back to the Senate to be finalized. Governor Quinn has already given the "thumbs up" to any pension reform.
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