Obama has committed the U.S. to war on the Islamic State. To then allow within a month an allied enclave to be overrun - and perhaps annihilated - would be a major blow.

Science has everything to say about what is possible. Science has nothing to say about what is permissible.

The liberal vision of America is that it should be less arrogant, less unilateral, more internationalist. In Obama's view, America would subsume itself under a fuzzy internationalism in which the international community, which I think is a fiction, governs itself through the U.N.

Washington is the only place in the world where a gaffe is when a politician accidently speaks the truth.

After the Soviet collapse, Marxism is a relic, a pathetic anachronism reduced to its last redoubts: North Korea, Cuba, and the English departments of the more expensive American universities.

If fences don't work, why is there one around the White House.

History is not just cruel. It is witty.