This is book 6 of the "Will Lee" series.

This note contains spoilers for the book.

Late in Lee's story, but this one is also the origin story for Teddy Fay, who becomes a recurring good-guy in the Stone Barrington books and a mentor to Stone's son.

Fay, in a planned move when he retires, starts assassinating right-wing political figures who he finds especially obnoxious, including one Supreme Court justice, a Rush Limbaugh standin, and an asshole preacher. On, and the speaker of the house and a senator. Not sure that's complete. The Supreme Court justice is probably done so cleverly that nobody realizes it's an assassination, although the book ends before that death gets investigated.

Teddy's .50 BMG handgun is in some sense perfectly feasible, but I sure wouldn't want to be holding it when it went off, and he fires off a magazine full at the Speaker of the House (and his protective detail, killing at least one of them).

And this is the one where Rawls earns and receives his Presidential pardon, for information leading to the death of Fay (which appears to have been considerably exaggerated; airplane exploded but no body found).

Fay will later receive, I don't remember, either an actual pardon, or a decision not to pursue him further. Oh, I think it's an actual but secret pardon, maybe. So President Lee and his wife have quite a history of pardoning CIA traitors. Then again the traitors earn it in both caes.