You now have the potential of 200 people deciding who ends up being elected president every single time.

Ensuring that the US continues to lead the world in science and technology will be a central priority for my administration.

The framers, in their wisdom, designed the [political] system so that power's pretty disbursed.

Without a deal [with Iran], the international sanctions regime will unravel with little ability to reimpose them. With this deal, we have the possibility of peacefully resolving a major threat to regional and international security. Without a deal, we risk even more war in the Middle East and other countries in the region would feel compelled to pursue their own nuclear programs, threatening a nuclear arms race in the most volatile region in the world.

It probably wouldn't be good for our economy for a bunch of these jobs to come back because, there's no way that people could be getting paid a living wage on some of these jobs - at least in order to be competitive in an international setting.

We built this country by making things, by producing goods we could sell.

We will kill bin Laden. We will crush al Qaeda. That has to be our biggest national security priority.