However Cochran has considerable influence behind the scenes especially in Mississippi. This made him the first Republican to win a statewide election in Mississippi in a century. As of 2010 he is the sixth-longest currently serving Senator and the third longest-serving Republican.
Cochran is the fourth most-senior Senator and the second most-senior Republican member. William Thad Cochran (born December 7 1937) is the senior United States Senator from Mississippi and a member of the Republican Party.