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

Donald Trump has said he wants to keep Medicare and Social Security the way they are. Congressman Price along with most Republicans are on record supporting voucherizing Medicare. So there are going to be some conflicts to resolve there.

[Hillary] Clinton has also struggled with key groups of voters.

Well, we had a bunch of primaries and caucuses on the Democratic side. Bernie Sanders won the Nebraska and Kansas caucuses. That keeps his campaign alive. But Hillary Clinton won Louisiana, which was the big prize of the night, so she ended up winning more delegates than he did yesterday.

The enthusiasm for [Donald] Trump had gone up. The net result was it made people more supportive of him.

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.

In 2012, African-Americans were 13 percent of the electorate, and 93 percent of them voted for [Barack] Obama.