True the Vote declared it has evidence of tampering in runoff records.
The Mississippi senator's campaign will amend $53,000 in get-out-the-vote cash payments.
McDaniel is contesting his loss in the GOP primary runoff election.
"The correct remedy is a new election," Chris McDaniel election lawyer Mitch Tyner said.
Losing Tea Party challenger is pushing forward in his fight over Senate runoff results.
Mississippi attorney Mark Mayfield played a role in the challenge of Sen. Thad Cochran.
The Kentucky senator has talked about reaching out to nontraditional demographics.
Anyone who believes that the 2014 elections are predictable should look to the Mississippi...
The Tea Party candidate sounds a defiant note and doesn't concede to Sen. Thad Cochran.
Officials said the effort by conservative groups to monitor the polls might be illegal.
McDaniel leads Cochran, backed by the Tea Party, 52 percent to 44 percent in a new poll.
Chamber of Commerce uses the ex-NFL star & Miss. native in a new ad boosting Cochran.
She said he's “being led down a primrose path to political oblivion.”
GOP hopes of corralling the Texas senator during the 2014 primary season are officially dead.
NRSC vice-chair says conduct of "Washington, D.C., machine ... was incredibly disappointing."
He chided racially charged questions asked during a Cochran press call.
Media call interrupted by apparent McDaniel supporters who asked racially charged questions.
The Republican is seeking to find evidence overturning Sen. Cochran's win.
Despite Sen. Thad Cochran’s (R) apparent victory, the Tea Partier is not conceding the race.
Establishment Republicans believe they've neutered the Tea Party for the foreseeable future.
The veteran senator orchestrated a stunning comeback over challenger Chris McDaniel.
National Democrats may have a rare offensive opportunity in the Deep South.
The 2008 presidental nominee will stump for the veteran senator ahead of tough GOP runoff.
A political operative is trying to drum up black votes for the longtime congressman.