Florida Governor Ron DeSantis and former U.N. Ambassador Nikki Haley repeatedly accused each other of lying in an acrimonious debate that mixed policy with insults as the two candidates battled to emerge as the top alternative to Donald Trump days before the campaign's first votes are cast. But with the former president absent once again from the debate stage, the rivals aimed most of their ammunition at each other, rather than the clear frontrunner in the race. FRANCE 24's Fraser Jackson reports from Washington.