What the Iowa caucus results mean

In American presidential politics, the starting gun has been fired in Iowa and former president Donald Trump has won the caucus convincingly. The real battle was for second place and an alternative to Trump. Florida Governor Ron DeSantis took a narrow lead over former South Carolina Governor Nikki Haley. Frank Lavin joins Christiane from Iowa to discuss these results, and New Hampshire’s primary next week. 

Also on today's show: Ecuador President Daniel Noboa; columnist Zeynep Tufekci 

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