Presidents should be very careful at all times in discussing the use or non-use of nuclear weapons. Presidents since the cold war have used nuclear deterrence to keep the peace, and I don't believe that any president should make any blanket statements with respect to the use or non-use of nuclear weapons.

You can bloom wherever you're planted, if you put enough effort into it.

I have a plan to make tuition debt-free for public colleges and universities.

That is what I want to make clear today. A man with a long history of racial discrimination, who traffics in dark conspiracy theories drawn from the pages of supermarket tabloids and the far, dark reaches of the Internet, should never run our government or command our military.

What I was saying back then was that we have a lot of public health costs that taxpayers end up paying for through Medicaid, Medicare, through uncompensated care, because that was in the context of the push for health care reform and that we needed some way to try to defray those costs.

It is our job to figure out what happened and do everything we can to prevent it from ever happening again.

We need to be as well prepared to defend ourselves against public health dangers as we should be to defend ourselves against any foreign danger.