Harry Enten rounds up the data on races in these three states, two of which Trump carried in 2016, while the other one (Minnesota) was uncomfortably close for a state that was supposed to be so reliably Democratic. At the risk of boring you, it's more good news for the Democrats.
"Donald Trump's success in the Upper Midwest -- particularly his victories in Michigan and Wisconsin -- were pivotal to his success in the 2016 presidential election.
His 1.5-point loss in Minnesota was the closest a Republican presidential nominee has come to winning the state since Ronald Reagan lost the state by 0.2 points in 1984.
But with Michigan holding its primary last week and Minnesota and Wisconsin voting on Tuesday, it's become clear that 2018 is a totally different cat. Trump's Upper Midwest triumphs have not carried over for Republicans this cycle.
Polls show Democrats in a good position in the Senate and governor races in all three states. This is yet another indication of that the political environment nationally is on the Democrats side."