A political analyst said Republicans ought to be alarmed over a new Fox News poll that he said shows a “consistent story” that Democratic presidential candidate Kamala Harris has closed the gap against Donald Trump in key Sun Belt states. Fox News sent out statewide surveys to 1,000 registered voters in Arizona, Georgia, Nevada and North Carolina. The surveys were conducted after the Democratic National Convention and after Robert F. Kennedy Jr. endorsed Trump. “Harris is up by 1 percentage point in Arizona and by 2 points in Georgia and Nevada, while Trump is ahead by 1 point in North Carolin…