Donald Trump on Monday delivered a yet another full-throated endorsement of Rep, Nancy Mace (R-SC) even as a report from Slate reveals she privately mocked supporters of the former president as “not smart.” “It is my great honor to Endorse a Strong Conservative Voice for South Carolina’s 1st Congressional District,” Trump wrote on Truth Social on the eve of South Carolina’s state primary elections. Trump also insisted Mace “has [his] complete and total endorsement.” Trump’s post comes on the heels of a Slate report that claims Mace lashed out against Trump voters after the fallout form her ill…