"Nine states—including such fast-growing places as Florida, Tennessee and Texas—currently have no income tax, and the race is on to see which will be the tenth, and perhaps the 11th and 12th. [...]We need to get rid of the deduction for state income tax payments. That's a red state subsidy of the failing blue states. Without it, the exodus of productive people to low tax states would deepen the downward spiral of the failing blue states.
it will further sharpen the contrast in economic policies between GOP reform Governors and the union-dominated high-tax models of California, Illinois, New York, Massachusetts and now Minnesota..."