1. “You got to get one thing - it takes some brass to attack a guy for doing what you did!”
- U.S. Republican presidential candidates will debate Saturday at 9 p.m. ET on CBS for the first time since Donald Trump's win in New Hampshire.
- Bitterly cold temperatures and arctic winds began freezing large swathes of the U.S. Northeast on Saturday.
- And how well do you know what happened in the news this week? Take our quiz.