Climate change is real. The science is compelling. And the longer we wait, the harder the problem will be to solve.

When I was in Vietnam I learned a lot about the promises that soldiers make to each other. The Marines have a promise to never leave behind their dead. In this country, as citizen soldiers, we need to make the commitment to each other that we will never leave our veterans behind.

If Russia is there [in Syria] alone fighting them [ISIL], guess what? Russia becomes the target and Russia starts seeing - who knows - MANPADs will find their way in there, airplanes will fall out of the sky. They will become vilified. They'll become the new magnet, together with Assad, for the jihadis.

I refuse to stand by while our democracy is trampled by politicians more concerned about amassing power than helping the people who sent them to Washington in the first place.

The hope is there. The sun is rising. Our best days are yet to come.

Values spoken without actions taken are merely slogans.

I will never cede the authority of our country or our security to any other nation. I'll never give a veto over American security to any other entity - not a nation, not a country, not an institution.