Rep. Nancy Mace announced she will not run for South Carolina’s open Senate seat, saying her current fight in Congress “matters right now.” Her decision leaves

Rep. Nancy Mace announced she will not run for South Carolina’s open Senate seat, saying her current fight in Congress “matters right now.” Her decision leaves the GOP race to replace the late Sen. Lindsey Graham, with his sister, Darline Graham, seeking a full term after being appointed to the seat…