Under the original Wisconsin Constitution, governors were elected for a term of two years; in 1967, the constitution was amended to increase the term of office to four years, beginning with the governor elected in the 1970 election. There is no limit to the number of terms a governor may hold. The longest-serving governor was Tommy Thompson, from January 5, 1987 until February 1, 2001, a total of 14 years and 28 days; the shortest-serving was Arthur MacArthur, Sr., from March 21, 1856 until March 25 of the same year; a total of 5 days.