I'm surprised the SE Suburban Counties dislike Trump that much.
Trump typically does worst in suburbs.
False. Trump does worst in Midwestern suburbs. He does fine there in the northeast and western primaries and has been effectively tied in the southern suburbs. The Midwest is just the lamest place on earth, particularly their suburbs, which BRTD can attest to.
E: and by Midwest, maybe I should exclude Michigan. He did well in Oakland County and dominated Wayne and probably could have repeated that in Ohio if Kasich didn't have a hometown advantage.
Start the Midwest at Indiana, that's where the culture really shifts.