sentences:  Each of these elected officers serves a term of four years and oversees a different part of county government.Members elected to county government positions are required to declare party affiliations and to be residents of the county.The county is one of the best bellwether regions for voting U.S. presidential elections; it has voted for the winning candidate in every election since 1956 and in all but two elections since 1888 (1908 and 1952).