While Donald Trump took the stage alone at a competing town hall, Nikki Haley and Ron DeSantis debated one-on-one for the first time, days before the Iowa caucuses. But did their dueling barbs do more damage to their own campaigns than to the frontrunner? Photo: Jim Watson/AFP/Getty Images 0:00 Nikki Haley and Ron DeSantis Finally Go Head-to-Head 8:08 Commercial Break 8:15 Donald Trump's Town Hall Read ‘Potomac Watch’ column: https://www.wsj.com/news/author/kimberley-a-strassel Follow ‘Potomac Watch’ on Twitter: https://twitter.com/KimStrassel Subscribe to WSJ Opinion: https://bit.ly/3PovNsz More from WSJ Opinion: On site: https://www.wsj.com/news/opinion On Twitter: https://twitter.com/WSJopinion On Facebook: https://www.facebook.com/WSJOpinion #WSJOpinion #WSJ #PotomacWatch