We're talking about nuclear war with North Korea. We're talking about Russia. Does it feel like the world has shifted? Are we all just in Donald Trump's reality show now?

The president sets the tone. He creates the atmosphere, and that can be enlightened, progressive, or it can be intimidating, depending on what the president's agenda is. I think the other dimension of this that I worry about is impacts overseas with friends and allies, many of whom are very, very concerned about America's position in the world and whether or not it's going to continue its leadership, which has been the prevalent condition since World War II.

I think Trump's presidency represents a completely different model than what we're used to. And I think to your point, yes, he is a great communicator, you know? He uses Twitter to great effect. I just wish he could stick more to the truth, because it's a very effective way of communicating directly with the American people.

Impeachment is our system's last resort for someone who treats himself or herself as above the law, the most relevant thing is whether this president, by his recent course of action, on top of his violations of the foreign corruption or emoluments clause, this president has shone that he cannot be trusted to remain within the law and our constitution's last resort for situations of that kind is to get the person out of office.

Some of you expressed surprise that I showed up-so many emails to read!

If we - particularly, if we peremptorily attack North Korea - that without deliberation, that North Korea will reflexively unleash all the rocketry and artillery - which they're pretty good at, by the way - on Seoul, and do as they vowed many times, to convert Seoul into a sea of fire. So, if we do something like this, this will have cataclysmic results.

The two most capable nation state adversaries in the cyber domain are clearly Russia and, of course, China. And I do think Russia poses a huge threat in the way they have used the cyber domain. That, to me, by the way, is the big issue here, is Russian interference in our political process, in our election process. And that is an egregious act by them. And they will continue to do that and I think more aggressively than they have in the past. And I think it's something Americans, all American citizens need to be aware of.