Republican presidential candidates are campaigning in Iowa, where former President Donald Trump is the overwhelming favorite to claim the party's nomination. Florida Governor Ron DeSantis and former U.N. Ambassador Nikki Haley are facing off for second place. Voting is set to begin tonight at 8 PM (CST). You can join LiveNOW form FOX for special coverage. Subscribe to LiveNOW from FOX! https://www.youtube.com/livenowfox?sub_confirmation=1 Where to watch LiveNOW from FOX: https://www.livenowfox.com/ Follow us @LiveNOWFOX on Twitter: https://twitter.com/livenowfox Raw and unfiltered. Watch a non-stop stream of breaking news, live events and stories across the nation. Limited commentary. No opinion. Experience LiveNOW from FOX.