Former Mississippi governor Haley Barbour slammed opponents and Tea Party groups backing Sen. Thad CochranThad CochranOvernight Finance: GOP offers measure to repeal arbitration rule | Feds fine Exxon M for Russian sanctions violations | Senate panel sticks with 2017 funding levels for budget | Trump tax nominee advances | Trump unveils first reg agenda Senate committee ignores Trump, House budgets in favor of 2017 funding levels Overnight Finance: CBO finds 22M more uninsured under Senate health bill | GOP agrees ObamaCare taxes must go | Supreme Court to look at Dodd-Frank whistleblower protections | More tax reform hearings | Green light for partial travel ban | MORE's challenger, state Sen. Chris McDaniel.

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“I couldn’t pick one of them out of a lineup with the Spice Girls,’ he said of national conservative leaders who are supporting McDaniel's bid to unset the six-term senator.

“They couldn’t care less about what’s in the best interest of Mississippi,” he continued, according to USA TODAY.

“They are trying to get Cochran as a trophy scalp so they won’t go out of business for the next (election) cycle because they lost every race they’ve gotten into.”

Cochran and McDaniel are headed to a June 24 runoff in an intense fight for the Senate.

Barbour is helping to run a super PAC that has spent nearly $1.7 million trying to save Cochran’s seat.