Twenty Years Later, By Separation Peak — Kristine Kathryn Rusch

From early on, Devin Culhane navigates the political world like a pro. When President Milan handpicks Devin as an intern, he comes to idolize Milan as a sort of demigod.

Until Devin finds himself confronted with Milan's past. Devin's response to that information could change the course of history -- but sometimes change brings consequences too harsh to bear.

“[‘G-Men'] is a sadly cynical story, very well crafted, well resolved.”
-- Rich Horton, Locus [recommended story] on G-Men