How Lamar Alexander Fended Off His Primary Challenge

“Conservatives have poured millions into primary challenges to senators this cycle, even in races where chances of success were slim. But Sen. Lamar Alexander (R-TN) has proved one of the greatest exceptions, and now he’s poised to defeated state Rep. Joe Carr and several lesser-known challengers in the Aug. 7 GOP primary,” Roll Call reports.

“So how did Alexander avoid the fate of many of his colleagues?”