News Analysis Republican Rep. Nancy Mace (R-S.C.) said in an interview that she thinks she will win reelection without the support of former President Donald Trump, whose endorsement or opposition carries substantial weight among GOP voters. On Jan. 15, Mace told South Carolina’s The State newspaper “I’m gonna win without [Trump].” Mace made the comment after Trump on Feb. 9 threw his support behind GOP primary challenger Katie Arrington. In 2018, Arrington successfully unseated long-time congressman and former South Carolina Gov. Mark Sanford, winning the GOP nomination to challenge former Rep. Joe Cunningham (D-S.C.) in South Carolina’s 1st Congressional District, which comprises Charleston and its environs. The surprise primary victory came after a public feud between Sanford and Trump. However, Arrington was defeated by Cunningham in the general election by a 1.4 point margin. In his endorsement of Arrington, Trump blamed her defeat on a bad car crash right before the …