Democratic candidates are prepping for the latest debate. They’ll be joined for the first time by former New York City Mayor Michael Bloomberg. Nikole Killion reports. Source

NASCAR driver Ryan Newman is home from the hospital after he was in a fiery crash at Monday’s Daytona 500. The crash left him with serious injuries. Nikki Battiste reports. Source

Democrats wasted no time during Wednesday’s debate before taking shots at Michael Bloomberg, the newest Democratic presidential candidate on the debate stage, taking aim within the event’s opening minutes at his derogatory comments about women and his billionaire status. CBSN political contributors Molly Hooper and Lynda Tran join CBSN’s “Red and Blue” with the latest. Source

Democratic candidates were ready for Michael Bloomberg, who made his debate debut on the stage in Las Vegas. Source

Two off-duty police officers, who are husband and wife, are credited with stopping a masked robber at a fast-food restaurant in Louisville, Kentucky – and it was caught on video. Naomi Ruchim has the story. Source

The billionaire media mogul’s vast wealth has fueled his run for president, but it could also become a liability. Source

Ahead of Wednesday’s Democratic debate, Democratic National Committee chair Tom Perez spoke with CBS News’ Nikole Killion about the party’s plans to avoid Nevada turning into another chaotic caucus. Source

Two 13-year-old suspects are in custody after a fire in a California library turned deadly. One firefighter who was killed has been identified, and another is missing. Jonathan Vigliotti reports. Source

A Mexican professor living in Singapore is accused of tracking a U.S. government source for the Russian government. He was arrested in the U.S. Jeff Pegues reports. Source

Former Vice President Joe Biden has touted his support in South Carolina. But after the results from Iowa and New Hampshire, can he maintain his stature there? Emily Bohatch, a politics and government reporter for “The State” newspaper, joined CBSN from South Carolina with more. Source