2011

Initiated by predecessor Mitch Daniels and perpetuated by Indiana governor Mike Pence, anti-Illinois billboards ($369,000 worth!) pop up along interstate highways. Sample slogan: “Illinoyed by higher taxes?”

2014

Pence signs a bill that will gradually drop the corporate tax rate from 6.5 to 4.9 percent by 2021. Illinois’s rate at the time was 9.5 percent. (It’s now 5.25 percent.)

2014

MAC Medical Supply, Tec Air, Carl Buddig & Company, AM Manufacturing, and others jump ship. Indiana doubles down on its ad campaign with the updated “Stillinnoyed?”

2015

Illinois governor Bruce Rauner bites back, telling the Chicago Tribune he plans to “rip the economic guts out of Indiana.”

2016

Days before Trump taps him as running mate, Pence proposes a $1 billion investment in tech entrepreneurship, steamrolling Illinois’s planned $220 million infusion into venture funds.