High Quality Content by WIKIPEDIA articles! Barnaby Thomas Gerald Joyce (born 17 April 1967), Australian politician, has been a member of the Australian Senate representing the state of Queensland since July 2005. He represented the National Party of Australia until the Queensland divisions of the Liberal and National parties merged into the Liberal National Party of Queensland in 2008, although remains Leader of the National Party in the Senate. He is known for being a highly independent member of his party, having crossed the floor 19 times under the Howard coalition government.