Being the incumbent is traditionally the best form of job security a Salt Lake County elected official can have. But four out of 10 county incumbents, three of them Republicans, were unseated Tuesday while several other county races were much closer than had been expected.

Republican County Commissioner Bart Barker blamed his loss to Democrat Jim Bradley, in part, on a "Democratic trend" that swept through races at the federal, state and local level.Democrat Randy Horiuchi, who won the County Commission post now held by M. Tom Shimizu, said Tuesday "started out as an anti-incumbent thing and turned into a party thing."