This hit piece from Haley’s PAC was from November 2013. It clearly had no impact - since McDaniel won more repubs in both head to heads.
So Barbour et al went the race baiting route, calling the Tea Party racist and claiming McDaniel was associated with the KKK, while also running Cochran as a liberal Dem (more food stamps, more welfare, more free stuff).
Any conservative, after being called a racist, who votes for Cochran is a fool.
Certainly it seems that GOP affairs have dived into treachery.
The only reason to walk into the voting booth with a nose clothespin would be because the Democrats are even MORE treacherous. And certainly it would be with no illusions about trusting in a mortal candidate. It would be about trying to keep a closing door open as long as possible.