The only person who counts in the administration is the president of the United States.

The United States survives so long as at least one of its major parties is politically and intellectually healthy.

The dismissal of any of these people would send a useful signal to U.S. allies that the president has the nerve - and self-awareness - to make a change.

Who knows better than you what it means to have a commander-in-chief who lived his entire life, who lived throughout the entire Cold War, and doesn't know what the nuclear triad is? It's absolutely astonishing. And so it's terrific to have Joe Dunford and you know, perhaps John Bolton and other people in positions of trust.

When it comes to trade, when it comes to standing up to countries like North Korea, when it comes to standing up to guys like Vladimir Putin, Donald Trump is not a conservative.

Hillary Clinton, as awful as I find her, is a survivable event. I'm not so sure about [Donald] Trump.

I think a Donald Trump presidency raises a new kind of version of conservatism which more closely resembles a kind of Father Coughlin, America first populism and nativism and isolationism, than the confident, modern, cosmopolitan, thoughtful, engaged conservatism of Ronald Reagan and Paul Ryan.