Boyd Matheson (R), a former chief of staff to Sen. Mike Lee (R-UT), is strongly considering a 2018 challenge to veteran GOP Sen. Orrin Hatch (R-UT) – the latest in a string of potential primaries against sitting Republican senators, Politico reports. “Matheson, a prominent conservative who currently runs the Salt Lake City-based Sutherland Institute think tank, would be a formidable contender should he decide to run.