Beating incumbents is very, very hard. Barring a major mistake (like Lugar not grasping the depth of his problems) or a tiny electorate (like the Utah GOP convention that ousted Bob Bennett in 2010), it’s extremely difficult to beat an incumbent in a primary. That goes double if it’s a Senate incumbent. That should be good news for Mississippi Sen. Thad Cochran who faces of with state Sen. Chris McDaniel in two weeks time.
Washington Post / The Fix