In other words, May/June were purposely selected to lead the reader to the conclusion that the Midwestern employment situation is getting precipitously worse, whereas if you instead use January-October 2017 as your window, you see:
Indiana 3.9% (was 4.0%)
Michigan 4.5% (was 5.2%)
Ohio 5.1% (was 5.0%)
Wisconsin 3.4% (was 3.9%)
Pennsylvania 4.7% (was 5.2%)
Yay! I too can cherry-pick data!
In January Trump wasn't president.
It also takes a while for economic policies to take effect. The economy is slow to react to policy shifts sometimes, and i'd say a few months ago is when it started having effect.