>> today is tuesday and yet another primary e llection day. the polls are open in four state, wisconsin, minnesota, wisconsin and vermont. the focus is the midwest, the region as you will remember that carried president trump to the 2016 electoral win. but an election after elections since then, we have seen the republicans' grip on once safe districts slip. joining me now is msnbc's steve kornacki and the washington post political correspondent steve weegle. and break it down for us, steve. >> well, start out in wisconsin and of course, donald trump carried the state in 2016 before there was trump though, there was ben for democrats and the bain of the political existence in wisconsin has been scott walker, the governor that they feel is four times the charm now when it comes to taking out