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.

There's nobody that wants the president to be successful more than I.

We have lots of challenges around the world, and I have no doubt the intelligence community will continue to watch them, monitor them, and report on them. The issue is, with all of our other distractions here in Washington, particularly, will the appropriate attention be paid to each one of these issues?

We had a general awareness, for example, of Russian use of social media - Facebook ads, use of Twitter, fake news implants - we had a general understanding of that. But now, as time has elapsed and time has gone on, I've certainly learned a lot more about the depth and breadth of what the Russians were about.

The Russians succeeded, I believe, beyond their wildest expectations. Their first objective in the election was to sow discontent, discord, and disruption in our political life, and they have succeeded to a fare-thee-well. They have accelerated, amplified the polarization and the divisiveness in this country and they've undermined our democratic system. They wanted to create doubt in the minds of the public about our government and about our system; and they succeeded to a fare-thee-well. They've been emboldened and they will continue to do this.

We must remain mindful of the potential impact of over-correcting the authorizations of the intelligence community.

Trump is very skillful at identifying - even if he can't quite get it clear, or precisely describe it - but that's what he wants to do, is always have something to use against people, even if it's distorted.