In the final days before the Iowa caucus, former Vice President Joe Biden is arguing that only he can defeat President Trump. He’s one of a handful of candidates in Iowa this week, as the other contenders are stuck in Washington dealing with the impeachment trial. Ed O’Keefe reports. Source

Airlines are planting trees to offset their carbon emissions – but does that action live up to the hype? Source

In an interview with CBS News’ Catherine Herridge, President Trump’s personal attorney Rudy Giuliani called John Bolton a “backstabber” in response to claims about Mr. Trump and the pause in aid to Ukraine. Source

President Trump’s defense team wrapped up its opening arguments, but the Senate impeachment trial may be far from done. The battle looms over allowing potentially explosive witness testimony. Nancy Cordes reports. Source

Kiki Hardee started a cocoa and cookie stand to raise money for others in her community. Source

Here’s a look at the top stories making headlines on the “CBS Evening News with Norah O’Donnell.” Source

The mother of the kid from the iconic meme is threatening to sue Republican Representative Steve King for using her copyrighted image for his “disgusting” campaign. Source

Fotis Dulos attempted suicide earlier today by gassing himself in his garage, his attorney Norm Pattis told CBS News. Source

The coronavirus outbreak that started in central China has left more than 130 people dead and infected thousands around the world. Source

Giuliani also said he “can’t imagine” President Trump told Bolton aid to Ukraine was contingent upon them opening an investigation into the Bidens. Source