I don't think we can rule out a wave, I think a Democratic takeover is possible but not probable.
Christopher Michael Cillizza[Donald] Trump won fair and square! He got 13.3 million votes. He won all over the country. He won when the race was crowded and when it was a one on one against Ted Cruz. There's just no reasonable way to keep Trump from the nomination while insisting that the will of the Republican voter is being respected.
Christopher Michael CillizzaDonald Trump is doing remarkably badly among non-white voters and there are lots of them in Arizona.
Christopher Michael CillizzaBrexit suggests that there IS some level of non-vocal group who supports positions like those espoused by [Donald]Trump that polls are missing.
Christopher Michael Cillizza