Nikki Haley ends her campaign for the Republican nomination: she leaves Trump the way clear to confront Biden. "I have nothing to regret," said the former governor of South Carolina, who announced her retirement after losing to Donald Trump in all the states that held primaries on Super Tuesday, except Vermont.

Haley did not announce this Wednesday who she will endorse. But she did encourage Trump — who is close to securing the delegates needed to secure her nomination — to win the support of Republicans and independent voters who backed her.