President Obama is an extraordinary person to work with and for.

I would rather be alone and a loud voice for action than be silent.

I am blunt sometimes; I am diplomatic sometimes; I am all things in between. Abrasive, you know, I guess it's in the eye of the beholder.

I think people have confidence that I will fairly and accurately represent their point of view to the President, and that I'm not going to put a spin on it, even if I may disagree with it.

We're well aware, and we have been for a long time, that there is a real threat from adversaries, state actors, non-state actors, to hack us, influence us, destroy stuff through cyber means. Because cyber threat has been understood for a while, it's longstanding, it's a concern.

I am blunt when I want to be.

Bashar al-Assad and those who still stand by him are now responsible for the deaths of more than 20,000 in Syria.