Wisconsin was a key state for the Donald Trump movement, but have we just now hit the tipping point to swing that state the other way?

In this undated photo provided by the Patty for Senate Campaign, Patty Schachtner, the St. Croix County medical examiner and Somerset school board member, poses for a photo. Schachtner knocked off state Rep. Adam Jarchow in the Tuesday, Jan. 16, 2018, special election for a Wisconsin state Senate seat. Schachtner’s victory in a traditionally conservative part of the state, and one that went strongly for President Donald Trump in 2016, is being treated by Democrats as a positive sign for the November election. (Patty for Senate Campaign via AP)

Wisconsin’s 10 Senate District has been represented by Republican Sheila Harsdorf since the 2000 election. Harsdorf was appointed by Governor Scott Walker to a statewide office, and so her seat was vacated for a special election to refill. District 10 is rural, in the northwest of the state, with the southern end of the district on the fringe of the Minneapolis-St. Paul region.

This should have been a slam dunk for Adam Jarchow to win to keep the seat for the Republicans, but Democrat Patty Schachtner won the seat for the Democrats in Trump country.

Trump won states like Wisconsin, Michigan, and Pennsylvania by so little, it won’t take much to flip them all back to the Democrats in 2018 and 2020. Is this the tipping point?