Because he has a Tea Party Challenger, and oh, he votes like with Obama way too often. His voting record is extremely leftist and that is what I would call controlled opposition. Sen Thad Cochran has been in the Senate for 36 years and has been…..okay on his gun rights votes, but all his other votes seem to indicate he is sitting as an active democrat. The Affordable Care Act, Bailouts, Common Core ect….
The Republicans and Democrats are virtually the same party. This is why the Tea Party is attacked by both the left and the right.
See through the left/right paradigm and help the grass roots movement get true Patriots into Congress.