The Iowa caucuses are here. Former President Donald Trump is in the lead, according to the most recent Des Moines Register/NBC News/Mediacom Iowa poll. He has the backing of 48 percent of likely Republican caucus-goers. Former U.N. ambassador Nikki Haley is in second place with 20 percent, and Florida Gov. Ron DeSantis is in third place at 16 percent.

Meanwhile, it is bitterly, bitterly cold in Iowa with a wind chill warning in place until after the caucus on Tuesday. And it’s not just Iowa – an arctic cold outbreak is set to bring record-setting, too-cold-for-comfort temperatures all over. Daily records for this time of year could be broken from coast to coast.

And in headlines: Sunday marked 100 days since the Israel-Hamas war began, John Kerry will step down as the U.S. special climate envoy, and the Supreme Court agreed to take on cases that will impact people experiencing homelessness and workers’ rights to unionize.

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