I take the Constitution very seriously. The biggest problems that we're facing right now have to do with [the president] trying to bring more and more power into the executive branch and not go through Congress at all. And that's what I intend to reverse when I'm President of the United States of America.

It's also wonderful to be back with my great friend and ally, Chancellor [Angela] Merkel. As I reflect back over the last eight years, I could not ask for a steadier or more reliable partner on the world stage, often through some very challenging times.

If you like your existing plan you get to keep it

Of course, violence will not end with our combat mission. Extremists will continue to set off bombs, attack Iraqi civilians and try to spark sectarian strife. But ultimately, these terrorists will fail to achieve their goals.

We've got to change our regulatory system.

I was able to do that [showing up of Democratic benefits] when I was the candidate. But I've not seen or presided over that kind of systematic outreach that I think needs to happen.

In a world of complex threats, our security and leadership depends on all elements of our power - including strong and principled diplomacy.