Governor Brownback's plan drew immediate, bipartisan criticism from state Senate leaders.
In his successful re-election campaign, Brownback pointed repeatedly to the pension fixes - which promised full funding of its obligations in 2033 - as a major accomplishment.
"It reneges on the commitment that was made,"Senate Minority Leader Anthony Hensley says.
Senate President Susan Wagle of Wichita said the governor is picking winners and losers by being selective in cutting.
Wagle says she prefers to see the burden of closing the budget shortfall spread evenly.
Senate Vice President Jeff King of Independence criticized the plan for diverting contributions to the state pension system.
King is chairman of the Senate pensions committee.