Marco Rubio said he was personally open over a long period of time to offering a path to citizenship for immigrants here illegally. Rubio's work on a comprehensive immigration bill is one of his biggest vulnerabilities with Republican primary voters.

I think primary voters have a right to know. And Donald's Trump excuse of it that he's being audited, look, that makes it even more important for him to release his taxes, so that voters can see if there is - Mitt Romney suggested there could be a bombshell there. I don't know if there is or not. But Donald is hiding them from the voters, and I think he owes candor to the voters.

If you're campaigning against ObamaCare, but you're also having to defend yourself for closing the government, that seems to take away the asset from you.

To earn the support of grass-roots activists, you have to spend real time, looking them in the eyes, answering their questions. Part of it is also you have to have a message that inspires people.

The message that I am conveying to President Trump, to the Cabinet, to leaders in both Houses is real simple. Let's do what we promised. Let's deliver on the promises and if we do that, we'll win at the ballot box and if we don't, the people will hold us accountable for that too.

A friend of mine, a Hispanic entrepreneur asked me a question sometime ago, he said, 'When is the last time you saw a Hispanic panhandler?' I think it's a great question. I'll tell you, in my life I've never once have seen a Hispanic panhandler, because in our community, it would be viewed as shameful to be out on the street begging.

I think that is why we're seeing conservatives uniting behind our campaign, because I have a proven record as a consistent conservative of standing up to Washington and fighting for the constitution.