Trump enters South Carolina primary looking to embarrass Haley in her home state

Residents have been voting in the South Carolina Republican primary (Andrew Harnik/AP)

Former president Donald Trump is looking to win his fourth straight primary state on Saturday over Nikki Haley in South Carolina, aiming to hand a home-state embarrassment to his last remaining major rival for the Republican nomination.

Mr Trump went into the primary with a huge polling lead and the backing of the state’s top Republicans, including senator Tim Scott, a former rival in the race.