The United States Republican presidential candidate, Nikki Haley, suffered an embarrassing defeat in Nevada's primary on Tuesday. Haley, the last remaining rival to frontrunner, Donald Trump, for the Republican presidential nomination, was the only major Republican candidate contesting the party's Nevada primary on Tuesday. Trump was not on the ballot, Reuters reports. U.S. President Joe Biden easily won Nevada's Democratic presidential primary after dominating his party's first nominating contest in South Carolina on Saturday.