Former President Donald Trump, grieving the loss of his brother Robert, shifted his Senate endorsement in South Carolina from a little-known congressman to Lindsey Graham's sister after conversations with Gov. Henry McMaster and the candidate herself.

The decision came as Trump processed personal grief while navigating the state's Republican primary dynamics. McMaster, a key ally, reportedly advocated for Graham's sister during discussions with the former president.

Trump's initial backing of an obscure House member had surprised observers. The pivot underscores how personal relationships and gubernatorial influence shape endorsement calculus in competitive primaries.

The endorsement could consolidate establishment support behind Graham's sister, though the congressman's allies may challenge the reversal. South Carolina's primary will test whether Trump's grief-influenced choice resonates with voters.