The following groups have no good reason to vote republican and for trump. Hispanics, lgbt, blacks, atheist. Muslims, women, jewish, farmers and non white supremacist. If they don’t get this vote, there is no way to win!
Farmers will support him because they get welfare in the form of subsidies...as long as they get paid, they aren't going to give up their conservative views.
Evangelical white women will vote for him because their spouses will...
Most white people think of themselves as non-white supremacists...and yet, many are quite racist...they will vote for him because they "understand" what racism is and is not...they are not wearing hoods or marching around...they are more "subtle" in their racism and will vote for him...