Rev. Stevie Fielder, an associate pastor at First Union Missionary Baptist Church in Meridian, Mississippi, says Cochran's campaign "told me to offer blacks $15 each and to vote for Thad."

Fielder, who was paid by freelance journalist Charles C. Johnson for the story, provided a new outlet launched by Johnson—GotNews.com—with four text messages from a person purporting to be Cochran campaign staffer Saleem Baird.

The messages cite an official Cochran campaign email address—Saleem@ThadForMs.com—and include detailed discussions of the campaign providing envelopes of money to distribute to people who vote.

"Send me individual names and amounts along with home address to saleem@thadforms.com and I'll have money separated in envelopes at the office waiting for you," one message, sent three days before the runoff, says.