PHOENIX (AP) -- Maricopa County Sheriff Joe Arpaio has been sworn in for an unprecedented sixth four-year term in office. This time, Arpaio's wife Ava administered the oath Monday afternoon to the 80-year-old sheriff. The couple has been married for 55 years. Some high-profile celebrities attended Monday's ceremony including actor Steven Seagal and actress Morgan Brittany. In 2005, Arpaio was sworn in by John Walsh -- the host of the America's Most Wanted television show. A sheriff's detention officer who was born in Mexico City and had recently become a U.S. citizen administered the oath to Arpaio in 2009. Arpaio survived one of the closest races in his career last November when he beat former Phoenix police Sgt. Paul Penzone by slightly more than 80,000 votes.