Six-term Sen. Thad Cochran of Mississippi has decided to forgo retirement and seek reelection in 2014, a GOP source with knowledge of Cochran's decision told National Journal.
Cochran, an influential figure in Mississippi politics known for bringing federal dollars to the state, already faces a primary challenge from tea-party state Sen. Chris McDaniel. McDaniel has the support of several conservative outside groups critical of Cochran's tendency to compromise in the Senate.
Cochran, first elected to the House in 1972, has been in the Senate since he won election in 1978. He's already raised more than $800,000 for his reelection campaign and has the backing of much of his state's Republican establishment.