Trump fired Jim Comey because the most dangerous thing in the world, if you are Donald Trump, is a person who tells the truth, is dogged, you can't control, and who is as committed as Comey is to the institutional independence of an organization that has the power to investigate you.

There is nothing normal about removing the FBI director, as a general matter. It's an extraordinary measure. This is an office that is typically served for a term of years, 10 years, to be precise.

Comey really spent an enormous amount of energy in the period in which both he and Trump were in office trying to protect the FBI from political interference from the White House.

As a general matter, if the president wants to withdraw from a treaty, he simply gets to do that. And that's part of the powers of the office.

When somebody promises to do something, you have to think about whether that's something that you would be willing to see happen because the powers are simply too vast.

Asking journalists to denounce leaks because of their deleterious effects on the functioning of government is as hopeless as asking an airline to denounce jet fuel because of its impact on the environment.

Trump fired Jim Comey because the most dangerous thing in the world, if you are Donald Trump, is a person who tells the truth, is dogged, you can't control, and who is as committed as Comey is to the institutional independence of an organization that has the power to investigate you.