That was thanks to African-American voters giving him a victory in a hard fought Republican primary runoff.  Cochran has done nothing to support the VRAA.  Meanwhile, he cannot even remember if he met AG nominee Loretta Lynch. NYT:

The pressure has fallen on Senators Mark S. Kirk of Illinois, Dean Heller of Nevada, Lisa Murkowski of Alaska, Thad Cochran of Mississippi and Rob Portman of Ohio to announce their positions.

Mr. Kirk and Mr. Portman face re-election next year in states with large African-American populations. Mr. Cochran barely staved off a Tea Party challenger in his state’s Republican primary last year, winning only because black voters crossed party lines to support him.

Mr. Cochran, who said he could not recall if he had met with Ms. Lynch, said race would not be a consideration.