"According to the Pew Foundation, Wisconsin has the fourth-largest unfunded pension liability per resident. The unfunded pension liabilities are over $77 billion."

"Wisconsin pension funding for teachers falls $10.9 billion short, report says"

Well what is it? If the pension is underfunded it is a result of the state not contributing what was needed. When you make a deal on wages and pension you uphold your promise.
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"Even if you are on the right track, you'll get run over if you just sit there." Will Rogers