Nikki Haley gaining momentum and facing attacks from opponents, with 4 days until Iowa caucuses

With her poll numbers rising, Nikki Haley is gaining momentum ahead of the Iowa caucuses. Meanwhile, former President Donald Trump and Gov. Ron DeSantis are taking aim at her. NBC News’ Garrett Haake caught up with Haley in Iowa. » Subscribe to NBC News: NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features , , , Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows. Connect with NBC News Online! Breaking News Alerts: Visit : Find NBC News on Facebook: Follow NBC New