List of governors of Pennsylvania  The Governor of the Commonwealth of Pennsylvania is the chief executive of the US State of Pennsylvania and commander-in-chief of the state's military forces. The governor has a duty to enforce state laws, and the power to approve or veto bills passed by the Pennsylvania Legislature and to convene the legislature. The governor may grant pardons except in cases of impeachment, but only when recommended by the Board of Pardons. There have been seven presidents and 47 governors of Pennsylvania, with two governors (Robert E. Pattison and Gifford Pinchot) serving non-consecutive terms, totaling 55 terms in both offices. The longest term was that of the first governor, Thomas Mifflin, who served three full terms as governor in addition to two years as president. The shortest term belonged to John Bell, who served only 19 days as acting governor after his predecessor, Edward Martin resigned. The current governor is Tom Wolf, whose term began on January 20, 2015. Pennsylvania was one of the original thirteen colonies, and was admitted as a state on December 12, 1787. Prior to declaring its independence, Pennsylvania was a colony of the Kingdom of Great Britain; see the list of colonial governors for the pre-statehood period. The first Pennsylvania constitution in 1776 created the Supreme Executive Council as the state's executive branch, with the President of the Commonwealth of Pennsylvania as its head. The president was chosen annually by the council, though with no specific term dates. The original 1776 constitution created the position of "vice-president", though no provision was made if the office of president became vacant, which occurred four times later. Contemporary sources continue to label the chief executive in such times as the vice president, without any notion of succeeding to the presidency. One acting president, George Bryan, was subsequently recognized later as a full-fledged governor, due to his acting as president for over six months. The 1790 constitution abolished the council and replaced the president with a governor, and established a three-year term for governor commencing on the third Tuesday of the December following the election, with governors not allowed to serve more than nine out of any twelve years. The 1838 constitution moved the start of the term to the third Tuesday of the January following the election, and allowed governors to only serve six out of any nine years. The 1874 constitution lengthened the term to four years, and prohibited governors from succeeding themselves. The current constitution of 1968 changed this to allow governors to serve two consecutive terms.