Though an article at Talking Points Memo calls Senator Thad Cochran's primary runoff strategy something new under the sun, it's really one of the oldest in the book:
The narrow re-nomination victory of six-term Republican Senator Thad Cochran in the Mississippi primary run-off may well mark a watershed moment in politics in the South. In his desperation to overtake Tea Party favorite Chris McDaniel, who beat him in the first round of the primary, Cochran hit upon a novel idea: to invite the black community into the final stage of the Republican Party nomination battle. On the campaign trail, Cochran said he had never been averse to helping out the African American community. By bringing home the bacon – federal spending and grants – to one of the most pork-laden states, Cochran bragged that he had helped buoy the interests of the poor in general and the state’s large black community in particular.