A super PAC backing Republican Sen. Thad Cochran's re-election bid was the sole source of money for a separate effort to urge black voters to support the incumbent.
Mississippi Conservatives is a pro-Cochran super PAC and was the only donor to All Citizens for Mississippi, a group that ran ads in black newspapers and helped turn out black voters in a two-man runoff. That's according to finance reports.
Former Mississippi Gov. Haley Barbour backed the Cochran super PAC.