More than half of Illinois voters said high taxes were the No. 1 concern for the state, according to an Illinois Policy Institute poll. Of those polled, nearly half said they would also move out of the state if given the chance.

The Chicago Teachers Union and its partners are pushing nine new or higher taxes that could end up costing Illinoisans $7.3 billion more starting July 1. Their scheme to fill a proposed state budget deficit is likely to backfire and shrink the tax base.

Of the states most Americans are moving to, 4 of 5 have a flat or no income tax. The states losing the most residents? There again, 4 of 5 have progressive taxes. Illinois’ flat tax is an advantage it should keep.