Julian Castro:

Throughout this campaign, I've been doing things differently from everybody else. I haven't been afraid to speak up and to go places in ways that other other candidates won't. I've been speaking up not only for strengthening the middle class, but also for the poor, because somewhere along the way, as Democrats, we forgot to fight as intensely for people who were poor.

Just a couple of days ago, I was on Skid Row in Los Angeles visiting with people who were homeless to understand the changes that we need to make in our country so that everybody has a place to live. I visited a storm drainage tunnel in Las Vegas where people were living there underneath the Las Vegas Strip. They have nowhere else to lay their head at night.

I want to make sure as well that no matter who you are, your background, that you're able to succeed. And my campaign has been about the most vulnerable people, people that are often cast aside and marginalized. So more and more people have found this campaign.

And especially with young people out there, we have gained some traction that we can feel. And we're working as hard as we can to capture that, to harness it and to beat expectations in Iowa and then springboard from there.