CBS Evening News S2024E13 - Episode 13

Nearly 100 million Americans under wind chill warnings or advisories. GOP candidates make final push ahead of Iowa caucuses. No end in sight as Israel-Hamas war hits100-day mark. U.S. officials press Israel to change tactics. How the Iowa caucuses work. Ukraine struggles to defend against Russian invasion as aid dries up. Iowa high school principal who shielded students during shooting dies. Iceland volcano erupts.