Published Jan 14, 2024 06:16AM ET Updated Jan 14, 2024 07:07AM ET 2/2 © Reuters. A person walks through the blowing snow and cold that has hit the state ahead of the U.S. presidential caucus elections, in Chelsea, Iowa, U.S., January 13, 2024. REUTERS/Brian Snyder 2/2 By Nathan Layne, Gabriella Borter and Tim Reid DES MOINES, Iowa (Reuters) - A highly anticipated poll set the tone for a final full day of campaigning in ice-cold Iowa on Sunday, with Donald Trump maintaining a big lead and Nikki Haley overtaking Ron DeSantis for second place in the Republican presidential race. The...