(Orem, UT) — Republican Senator Mike Lee is set to debate independent candidate Evan McMullin tonight in Orem. The debate at Utah Valley University will be the only head-to-head meeting between the two candidates before next month’s election. Polls show the two-term senator is leading McMullin, though a substantial number of voters say they have not decided who they plan to vote for. The debate is scheduled to begin tonight at six o’clock.