Timothy Griffin visited through 1990, Hendrix College in Conway (Arkansas ). After a subsequent law degree from the Law School of Tulane University in New Orleans and his 1994 was admitted to the bar he began to work as a lawyer. He is to this day the legal department of the Army Reserve. In the meantime, he practiced as a private attorney and suggested as a member of the Republican Party also a political career. He was in the years 2000 and 2004 during the campaign team of George W. Bush. In the disputed vote count in Florida in the presidential election of 2000 he was legal adviser to the Republican Party. In 2006 and 2007 he served as United States Attorney for the Eastern part of the state Arkansas.
In the congressional elections of 2010, Griffin was in the second electoral district of Arkansas in the U.S. House of Representatives in Washington DC chosen, where he became the successor of not more candidates Democrat Vic Snyder on January 3, 2011. He is a member of the Armed Services Committee, the Foreign Affairs Committee and the Judiciary Committee and a total of seven sub-committees. Within the party he belongs to the conservative Republican Study Committee.
In the congressional elections in 2012 Griffin sat down with 55:39 percent of the vote against the Democrats by Herb Rule.