Nikki Haley is on the rise, looking for an upset that could derail former President Trump’s path to the Republican presidential nomination. It’s becoming increasingly clear that the New Hampshire primary is her best— and perhaps only — chance.Haley’s advance in the Granite State has been striking.A new American Research Group (ARG) poll released Thursday put Haley within 4 points of Trump in New Hampshire — a jaw-dropping result given that Trump has a lead of about 50 points in national polls. The ARG poll showed Trump with 33 percent support in New Hampshire and Haley at 29 percent, with...