CBS News spoke to four women who will each caucus for a Democrat in Iowa. Source

Ahead of the Iowa caucus, CBS News sat down with four female farmers. They spoke about health care, the economy and the impact of the president’s trade wars. Janet Shamlian has more. Source

While Iowa is not representative of the country, it gives an early sense of a campaign’s strength and ground game. Major Garrett joins the “CBS Evening News” to explain what the caucus means for the Democratic contenders. Source

The emotional testimony came as defense attorneys tried to portray Jessica Mann as an opportunistic manipulator. Source

Former Vice President Joe Biden was upbeat ahead of the Iowa caucus. He said his campaign will “survive all the way through.” Nikole Killion has more. Source

As the figures rise fast and the 1st death is confirmed outside China, the U.S. government has declared a public health emergency and cut travel links. Source

The president’s address may be running up against some counterprogramming: Mr. Trump’s impeachment trial​ in the Senate. Source

Police said a 51-year-old from Colombia died and a suspect was taken into custody. Source

“Every single vote — even a single vote, by a single member — can change the course of history,” Schiff said. Source

A man opened fire aboard a Greyhound bus carrying dozens of passengers in Southern California early Monday, killing one person and wounding five others. CBSN Los Angeles’ Tina Patel reports. Source