Answer the following question: Information:  - Kentucky, officially the Commonwealth of Kentucky, is a state located in the east south-central region of the United States. Kentucky is one of four U.S. states constituted as a commonwealth (the others being Virginia, Pennsylvania, and Massachusetts). Originally a part of Virginia, in 1792 Kentucky became the 15th state to join the Union. Kentucky is the 37th most extensive and the 26th most populous of the 50 United States.  - Tennessee ("Tanasi") is a state located in the southeastern region of the United States. Tennessee is the 36th largest and the 16th most populous of the 50 United States. Tennessee is bordered by Kentucky and Virginia to the north, North Carolina to the east, Georgia, Alabama, and Mississippi to the south, and Arkansas and Missouri to the west. The Appalachian Mountains dominate the eastern part of the state, and the Mississippi River forms the state's western border. Tennessee's capital and second largest city is Nashville, which has a population of 654,610. Memphis is the state's largest city, with a population of 655,770.  - William Edward "Bill" Haslam (born August 23, 1958) is an American politician who is the 49th and current Governor of Tennessee. A member of the Republican Party, Haslam was elected Governor in 2010 and was sworn in on January 15, 2011.  - The Mississippi River is the chief river of the largest drainage system on the North American continent. Flowing entirely in the United States (although its drainage basin reaches into Canada), it rises in northern Minnesota and meanders slowly southwards for to the Mississippi River Delta at the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains all or parts of 31 U.S. states and 2 Canadian provinces between the Rocky and Appalachian Mountains. The Mississippi ranks as the fourth longest and fifteenth largest river in the world by discharge. The river either borders or passes through the states of Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana.  - Bill Gibbons is the Commissioner of the Tennessee Department of Safety and Homeland Security . He was appointed to the post by the Governor of Tennessee , Bill Haslam . He is a former District Attorney General of the 30th Judicial District of Tennessee , which includes Shelby County and the city of Memphis , Tennessee . He was a Republican candidate in the 2010 Tennessee gubernatorial election , but dropped out on March 26 , 2010 due to `` lack of sufficient campaign funds to go forward . ''    After reading the paragraphs above, choose the best answer for the entity that related to 'bill gibbons' with the relationship of 'member of political party'.  Choices: - republican party  - the river  - union
Answer:
republican party