If Donald Trump wins, it will be a seismic event.

On the other side, you have the conservative intelligentsia - magazines like National Review, which has a big anti-Trump issue; Weekly Standard editor, conservative talk show hosts - they're mounting a big anti-Trump effort, pro-Cruz effort because they think [Donald] Trump is dangerous and he's not qualified to be commander in chief.

Hillary Clinton is also not a very exciting, inspiring candidate to a lot of the left-leaning Democratic base, especially in Iowa.

The Republican Party, right now, is a conservative populist party.

After months and months at the top of the polls, there is a real possibility that Donald Trump could be the nominee.

Even if [Donald] Trump concedes, some of his supporters have promised to take up arms against [Hillary] Clinton.

The establishment is divorcing itself from its base - from voters who are choosing a candidate who says he stands for things that are anathema to the establishment.