Republican feud escalates; SC Gov. Haley backs Rubio

CHAPIN, S.C. (AP) — A three-way feud among the GOP's leading White House contenders escalated Wednesday, with Republican Ted Cruz daring Donald Trump to sue him and dismissing Marco Rubio's charges of dishonesty just days before South Carolina's high-stakes primary.
Yet it was Rubio who may have scored the day's biggest win as he secured the coveted endorsement of South Carolina Gov. Nikki Haley. The popular governor said she was tasked with identifying the best candidate as she surveyed the crowded GOP field.