A judge said McDaniel waited too long to file a challenge to Sen. Cochran's win.
They say they'll file within 10 days but still failed to produce evidence of voter fraud.
She praised Thad Cochran's courting of black voters to win the Senate GOP runoff last week.
McDaniel's campaign has zeroed in on Hinds County as part of a potential legal recourse.
National Democrats may have a rare offensive opportunity in the Deep South.
Sen. Jerry Moran said the committee would ultimately back Chris McDaniel if he wins.
Sen. Thad Cochran suggested he was “glad” to be involved in the ObamaCare effort.
Cochran challenger charges timeline of events in video of senator's wife is "very clear."
A conservative group is launching a radio ad touting Sen. Thad Cochran's (R-Miss.) primary...
After weeks of threats that he'd take legal recourse, the Senate loser files challenge.
Miss. Republican made a few wrong turns before accidentally ending up at Senate Dem lunch.
It’s been a week since Thad Cochran won the primary, but not if you ask Chris McDaniel.
Sen. Thad Cochran (R-Miss.) is holding a remarkable but razor-thin lead over primary challenger...
Animosity and missteps have quickly returned ahead of the GOP Senate primary runoff.
The Tea Party has kept its aim on Sen. Thad Cochran (R) despite a scandal involving his wife.
Sen. Chris McDaniel is grappling with a controversy that threatens to topple his campaign.
The Tea Party-backed candidate says Mississippi can "lead a conservative revival."