Ben Sasse on Principles & Values

Endorsed by Freedom Works' founder & other Tea Party groups

Armey, who recently left the chairmanship of Freedom Works after an internal struggle, said: "We don't need career politicians running because this is just the next rung on the ladder for them."

Sasse previously pocketed endorsements from two conservative national organizations, the Senate Conservatives Fund and the Club for Growth. All three political action groups espouse conservative principles closely tied to the views of tea party advocates.