As President Trump’s impeachment trial officially kicks off Tuesday, some senators who are campaigning against him in the 2020 election will have to take a break from the campaign trail and return to Capitol Hill, while the Iowa Caucuses are just two weeks away. CBS News political correspondent Ed O’Keefe joined CBSN with the latest on Campaign 2020. Source

Video of Pitt stopping backstage to watch Aniston’s acceptance speech is melting hearts across the country Source

Michael McDonald competes in 140-mile course to raise money for MusiCares, the Recording Academy charity that he says saved him Source

While it may seem that Lizzo came out of nowhere, the Grammy-nominated rapper, singer, songwriter and classically trained flautist has actually been perfecting her craft for almost a decade. “CBS This Morning” co-host Gayle King met up with her at her favorite Caribbean restaurant in Brooklyn to talk about her long ride to the top, as part of our Road to the Grammys series. Source

As the impeachment trial of President Trump gets underway this week, Senate Minority Leader Chuck Schumer says he’ll force votes to call four witnesses at the trial if Majority Leader Mitch McConnell doesn’t do so. Democrats will need the votes of four Republicans. Republican Jeff Flake of Arizona, who served in the Senate from 2013 until last year, joins “CBS This Morning” with his advice for members of his party. Source

A look back at what we’ve been covering on “CBS This Morning.” Source

Dr. Martin Luther King Jr.’s children, Bernice King and Martin Luther King III, and his granddaughter, Yolanda King, read part of the civil rights icon’s “The American Dream” sermon. MLK Jr. originally delivered the speech at Ebenezer Baptist Church in Atlanta in 1965. Source

The Grammy-nominated rapper, singer, songwriter and classically trained flautist was once living in her car. Source

The White House is due to submit its formal legal brief for opening arguments in President Trump’s impeachment trial by noon. Source

Economists track denials of abortions to significant increases in unpaid debts, evictions and poverty conditions. Source