Over a thousand former Justice Department officials have called on Attorney General William Barr to resign after he overruled Roger Stone’s sentencing. CBS News White House correspondent Weijia Jiang and Associated Press White House reporter Zeke Miller join CBSN to discuss the president’s relationship with Barr. Source

A U.S. official told CBS News that the government source is someone who has provided information on Russian intelligence services. Source

The iconic singer is in the midst of a three-year-long farewell tour. In a statement, the 72-year-old said he was “incredibly disappointed.” Source

For the first time in a decade, former New York City Mayor Michael Bloomberg will be competing in a televised electoral debate. Chuck Rocha, senior adviser to Bernie Sanders’ presidential campaign, spoke to CBSN’s “Red & Blue” about how the Sanders is preparing to square off with the billionaire. Source

President Trump is standing by Attorney General William Barr despite growing calls for him to resign over his handling of the Roger Stone case. Francesca Chambers and Andrew Desiderio joined “Red & Blue” to discuss the latest on the Stone fallout. Source

In a new piece for The New York Times, Dave Philipps takes a closer look at a problem the military has struggled with for more than a decade: Accurately diagnosing brain injuries in the field. Philipps joined CBSN to discuss his work. Source

President Trump headlined the most expensive fundraiser of his reelection bid Saturday in Florida. CBSN’s Elaine Quijano speaks with Washington Post reporter Michelle Ye Hee Lee about her reporting of the event that was expected to raise $10 million. Source

Since December, 900,000 civilians have been forced to flee Syrian and Russian bombs in the northwest. Most are women and children. Source

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

The top U.N. official is calling the humanitarian catastrophe unfolding in Syria “cruel beyond belief.” Since December, 900,000 civilians have been forced to flee Syrian and Russian bombs. Holly Williams reports. Source