The Washington Examiner has learned that Lee is aiming to serve as the chair of the Senate Republican Policy Committee, which is the fourth-highest ranking position in the Senate, charged with helping craft the party’s policy agenda. It is a position that has been held by Sen. John Barrasso of Wyoming since 2012.

Lee will be discussing the reasons behind his decision in an exclusive interview with the Examiner on Tuesday.

A constitutional lawyer, Lee rocked the political establishment in 2010 when he knocked off sitting three-term U.S. Sen. Bob Bennett at Utah’s Republican Convention, representing an early victory for the Tea Party movement.