Complex sentence: He returned to Montana in 1986 to open up a ranching and irrigation business in Whitefish, and in time was appointed by President Clinton to the United States Department of Agriculture's Montana USDA Farm Service Agency committee, where he worked for seven years.
Split into simpler sentences: He returned to Montana in 1986 to launch a ranching and irrigation business in Whitefish. Bill Clinton appointed Schweitzer to the United States Department of Agriculture as a member of the Montana USDA Farm Service Agency committee, where he worked for seven years.