Mark Smith leads the Republican primary for South Carolina's 1st Congressional District with 60.5% implied probability, driven by his record as a state representative, superior fundraising totals, and stronger showings in recent straw polls compared with challengers. A late-May debate on Hilton Head sharpened contrasts, as Alex Pelbath highlighted his military background while questioning Smith's legislative decisions on redistricting. The remaining candidates trail further behind in both resources and visibility. With the June 9 primary just days away and no candidate expected to secure a majority, the current pricing reflects trader consensus on Smith's edge in the crowded field.