Former South Carolina Governor Nikki Haley and former President Donald Trump will make their closing arguments in New Hampshire on Sunday in a final stretch of campaigning for the Republican presidential nomination before voters go to the polls on Tuesday. Time is running short for Haley, who served as Trump's ambassador to the United Nations, to topple the Republican presidential frontrunner after his victory in the Iowa caucuses underscored his dominance in the primary race. If she cannot score an upset win in New Hampshire on Tuesday, her already-narrow path to the nomination could close altogether.
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