Victor Oquendo has the dangerous weather impacting more than 100 million Americans, including below-zero temperatures and white-out conditions; Rachel Scott reports from Iowa as the Republican candidates for president make their final pitch ahead of the Caucuses with new poll numbers showing the race is evolving; Morgan Norwood reports on the hero principal who has died following a school shooting; and more on tonight’s broadcast of World News Tonight.

00:00 Intro
02:20 100+ million on alert for winter blast
05:48 Final countdown to Iowa Caucuses
08:08 Trump on the verge of victory in Iowa?
09:58 Urgent search for missing Navy SEALs
10:46 Hero principal dies after school shooting
12:12 Russia threatens to take more Ukrainian territory
14:06 Protests on both sides mark 100 days of Israel-Hamas War
14:25 Agents ‘barred’ from rescuing migrants
16:42 Deadly hot air balloon accident
17:02 Fast-moving lava threatens town
17:30 Thousands welcome new king of Denmark
17:48 Green Bay Packers’ Jordan Love makes a clutch play off the field
18:14 Are you smarter than a six-year-old?

ABC World News Tonight with David Muir delivers the news that matters most. Watch to get the latest news stories and headlines from around the world.

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