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.

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.

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.

I think a Donald Trump presidency sets up an Elizabeth Warren ascendancy. And it not Elizabeth Warren, someone of her ilk. And I think that's dreadful.

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.

In the Middle East there are two kinds of regimes - those that could be worse, and those that couldn't be worse.

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