Doyle says it would cost Wisconsin schools $400 million over the next two years if they don't.
Republicans and other groups supporting the limits turned up their lobbying effort today as well. GOP lawmakers argue the caps are needed to avoid taxing people out of their homes.
Democratic lawmakers have announced their own alternatives to the limits as lawmakers head toward a political showdown on the issue Tuesday, that's when the Senate is scheduled to vote on the override. It would require a two-thirds vote in both houses to succeed.
Michael Birkley is legislative director for Wisconsin Property Taxpayers Incorporated. He says it's up to each senator to weigh what's more important to him or her, the party's support or the taxpayers' support.