A lifelong Alaskan from Fairbanks, Binkley has an extensive record of local, successful business ownership. Shortly after moving to Bethel in 1977, Binkley founded a shipping business and became involved in public service, first on the Bethel City Council in the early 80s and then representing the region in the Alaska House of Representatives. He subsequently served in the Alaska State Senate, and was Chairman of the Alaska Railroad Corporation from 1997 to 2011, a board he still serves on today. Binkley was president of the Alaska Cruise Association from 2007 to 2019.