Mississippi, Tennessee, and Cumberland rivers. Five inland ports are located in the state, including the Port of Memphis, which is the fifth-largest in the United States and the second largest on the Mississippi River. Law and government The Constitution of Tennessee was adopted in 1870. The state had two previous constitutions. The first was adopted in 1796, the year Tennessee was admitted to the union, and the second in 1834. Since 1826, Nashville has been the capital of Tennessee. The capital was previously in three other cities. Knoxville was the capital from statehood in 1796 until 1812, except for September 21, 1807, when the legislature met in Kingston for a day. The capital was relocated to Nashville in 1812, where it remained until it was relocated back to Knoxville in 1817. The next year, the capital was moved to Murfreesboro, where it remained until 1826. Nashville was officially named Tennessee's permanent capital in 1843. Executive and legislative branches Like the federal government, Tennessee's government has three branches. The executive branch is led by the governor, who holds office for a four-year term and may serve a maximum of two consecutive terms. The governor is the only official elected statewide. The current governor is Bill Lee, a Republican. The governor is supported by 22 cabinet-level departments, most headed by a commissioner the governor appoints. The executive branch also includes several agencies, boards, and commissions, some of which are under the auspices of one of the cabinet-level departments. The bicameral legislative branch, the Tennessee General Assembly, consists of the 33-member Senate and the 99-member House of Representatives. Senators serve four-year terms and House members serve two-year terms. Each chamber chooses a Speaker, who is elected by a joint session of the legislature. The Speaker of the Senate also serves as the lieutenant governor, a practice found only in one other state, and the House Speaker is third in line for the governorship. The legislature can override a veto by a simple majority, and the state has no "pocket veto". The legislature convenes at noon on the second Tuesday in January and meets for a total of 90 days over two sessions, usually adjourning in late April or early May. Special sessions may be called by the governor or by two-thirds of the members of both chambers. Judicial system Tennessee's highest court is the state Supreme Court. It has a chief justice and