The effort to fix a tax loophole that could increase your property taxes failed to get any Republican signatures. State Senator Bob Wirch circulated a letter over the past few days, asking Governor Scott Walker to call a special session to take up a bipartisan measure fixing the loophole. Many Democrats signed the letter but no Republicans. Several of the big box stores have successfully argued in court that they should have to pay property tax on the assessed value of the land and the building as if it were empty. That argument is called “Dark Store Theory.” Local leaders have disputed that claim and want to tax more the value of the business inside the building. Last week, legislative leaders said that the bill would not be taken up this year. That’s means tax property bills could increase by hundreds of dollars this year. It’s unclear if Walker will be willing to call a special session later this year.