The governor of Wisconsin is the head of government of Wisconsin and the commander-in-chief of the state's army and air forces. The governor has a duty to enforce state laws, and the power to either approve or veto bills passed by the Wisconsin Legislature, to convene the legislature, and to grant pardons, except in cases of treason and impeachment. The position was first filled by Nelson Dewey on June 7, 1848, the year Wisconsin became a state. Prior to statehood, there were four governors of Wisconsin Territory. The 46th, and current governor is Tony Evers, a Democrat who took office on January 7, 2019. Powers The governor of Wisconsin has both inherent powers granted by the U.S. Constitution and administrative powers granted by laws passed by the Wisconsin State Legislature. Constitutional powers The constitutional powers of the governor of Wisconsin are outlined in the Wisconsin Constitution at Article V, Section 4. In general, the governor ensures that the laws of Wisconsin are carried out. Veto power The governor of Wisconsin has the strongest veto power of nearly any American governor. Any bill passed by the Wisconsin State Legislature must be presented to the governor, who either signs it into law, or vetoes it. In the event of a veto, the bill is returned to the legislature, who may then vote to override the veto. In 1930, the Wisconsin Constitution was amended to give the governor line-item veto power, which allows portions of appropriations bills to be struck out without rejecting the entire bill. Governors have the power to strike out words, numbers, and even entire sentences from bills. The partial veto may still be overridden by the legislature. In 1990 a further amendment specified that the line-item veto does not give the governor power to veto individual letters of appropriations bills, thereby forming new words. Despite this 1990 law, the strength of the governor's veto power gave rise to the term "Frankenstein veto" to describe the governor's ability to form a new bill that subverts the intent of the legislature. The Wisconsin Supreme Court will determine if the veto power should be further limited in 2019. Other constitutional powers The governor is the commander-in-chief of the state's militia. If it is deemed necessary, the governor may also convene extraordinary sessions of the state legislature; and may convene them anywhere in the state, if Madison, the state capital, is deemed unfit