Meet the Press NOW — January 4, 2024

A school shotting in Iowa leaves one dead and five injured. Houthi attacks in the Red Sea and a deadly drone strike in Iraq increase concerns of a widening war in the Middle East. 2024 presidential candidates Gov. Ron DeSantis (R-Fla.) and fmr. Gov. Nikki Haley (R-S.C.) struggle to beat former President Donald Trump as the Iowa caucuses near. NBC News Correspondent Ryan Reilly discusses Trump's legal battle to stay on the ballot.