State Representative Mark Smith holds the strongest position in the South Carolina 1st Congressional District Republican primary, reflecting his incumbency in the state House, established fundraising edge, and recent straw poll victory at a candidate forum. Alex Pelbath trails as the nearest challenger, drawing support from his military background and local conservative messaging, while Jenny Costa Honeycutt, Jay Byars, and Sam McCown occupy the next tier based on council experience and donor activity. The June 9 primary date concentrates attention on voter turnout in Charleston, Berkeley, and Dorchester counties, where name recognition and endorsements from sitting legislators continue to shape early positioning among the crowded field.