Trump’s endorsement faces major tests in Tuesday’s primary runoffs NBC NewsTrump Lays It on the Line for Darline Graham Ahead of South Carolina Runoff The New York Times‘He’s all in’: Trump tests his sway over the GOP with Darline Graham PoliticoGraham hopes Trump propels her across finish line in South Carolina The Hill🗳️ Graham Gaffe tests Trump’s endorsement power in South Carolina Decision Desk HQ | Substack