Here are some of the memorable moments in the fourth GOP presidential debate
NPRHere are some of the memorable moments in the fourth GOP presidential debate Enlarge this image toggle caption Justin Sullivan/Getty Images Justin Sullivan/Getty Images We've been here before: Republican presidential hopefuls took the debate stage, without their party's overwhelming front-runner. He went on, accusing Ramaswamy of insulting "Haley's basic intelligence," and added that he'd known Haley for 12 years — longer than he claimed Ramaswamy had been voting in Republican primaries. Enlarge this image toggle caption Jim Watson/AFP via Getty Images Jim Watson/AFP via Getty Images "No," Haley said. Later, in a tense exchange with DeSantis regarding Trump's age, Christie said there's one essential question to be answered about: "Is he fit to be president or isn't he?" Republican pollster Jon McHenry of North Star Opinion Research believes there's still a narrow opening for an alternative, "as much as Donald Trump is trying to force it closed and lock it."