Mad About Trump: Two Americas, both political parties in upheaval and the midterm elections around the corner. The president is smack in the middle.

This special report two months before the pivotal vote examines the impact of Trumpism on both political parties — their leaders, their candidates and their activists — as well as how it’s disrupting the political culture for voters.

Through dozens of interviews, an exclusive poll, an NBC News analysis of candidate websites and more, the picture has become clear: Democrats are moving further left; Republicans are gravitating toward Trump; and the voters increasingly disdain anyone who doesn’t agree with them.