New data shows Illinois since 2010 lost up to $32 billion in income from people moving out. Gov. J.B. Pritzker’s graduated income tax plan would hike rates on residents most likely to leave the state, on net.

An amendment to scrap Illinois’ constitutional flat tax protection is gaining sponsors in the Illinois Senate. Lawmakers have refused to discuss rates since those details killed the last progressive tax attempt.

The corporate tax reforms under President Donald Trump’s proposed tax plan could strengthen Illinois’ position as a home for businesses, but the state’s uncompetitive income, property and death tax policies would put its residents at an even greater disadvantage with respect to other states if the president’s plan passes.

High-income earners provide the majority of Illinois’ income tax revenue, and IRS data show that Illinois is losing these taxpayers to out-migration.