believe I listed "In Search of the Kuskokwim" before as a reasonably good read... A bit weak on the actual story but a great overview of a pretty amazing guy.

https://www.amazon.com/Search-Kuskokwim-Other-Great-Endeavors/dp/1935347047

Mark Begich, Joaquin Jackson, and Heller resistance... Three huge reasons to worry about the NRA.