I commanded a naval gunboat patrolling the Mekong Delta. Then when I came home after two tours of duty, I decided that the same sense of service demanded something more of me.

We do not need to divide America over who served and how. I have personally always believed that many served in many different ways.

As the saying goes, I have big heels to fill.

We are all proud of is World War II where we went in, we were decisive, we came to the conclusion that freedom prevailed, and we were heroes.

Mitt Romney says he believes in America and that he will restore American exceptionalism. I have news for him, we already have an exceptional American as president and we believe in Barack Obama.

The Russians need to understand that you cannot have peace [in Syria] unless you resolve the question of Sunni buy-in.

I think that all of the cyber attacks that are taking place, but particularly this - the Russian one, had a profound impact on the American system, on our political process, on our - it invaded the space of our election. The releasing on a regular basis of one party's stolen emails had an impact, and I think that other things also had an impact.