San Juan County has not supported a Democrat for president since Franklin D. Roosevelt in 1936. However the county is slightly more competitive at the state level due to its high Native American population, who lean Democrat, and the comparatively small Mormon population which leans Republican, as well its economic distress. Notably, San Juan voted for the Democratic candidates in the 1988 and 2000 gubernatorial elections, both of which Republicans won. The area also votes less Republican than the rest of Utah in national elections. In 2004, for example, George W. Bush won 60.02% in San Juan County versus 71.54% in the state as a whole.Federally mandated commissioner districts put many Navajo voters in one district.  The San Juan County Board of Commissioners has been majority white for many years. In 2016, a Federal District Court decision found voting districts violated the 1965 Voting Rights Act and the U.S. Constitution.  The County was afraid to redraw district boundaries because they were put in place by a Federal Judge.  Before this the County used an at large voting system to elect commissioners

Who is less Democrat, Native Americans, or Mormons?
Mormon