Military families living in housing riddled with mold came to Congress to demand action. Jan Crawford spoke with families who said they put their health in danger just by being at home. Source

For the second day in a row, a Wisconsin high school was put on lockdown after an officer shot an armed student. It happened after an officer reported being stabbed. Dean Reynolds reports. Source

North Korea is dialing up the pressure on the U.S. to salvage nuclear negotiations. President Trump insisted he still had confidence in North Korean leader Kim Jong Un. Elizabeth Palmer reports. Source

“I wouldn’t miss a class for a broken bone.” Source

President Trump is in London, running elbows with royals and clashing with world leaders. In a tense exchange, he offered the president of France captured ISIS fighters. Ben Tracy reports. Source

Kamala Harris told her supporters she’s dropping out of the race for the Democratic nomination. As Ed O’Keefe reports, Harris reviewed her campaign finances and decided she couldn’t go on. Source

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

Republican Representative Duncan Hunter has pleaded guilty to conspiring to steal campaign funds. In doing so, he is reversing his previous not guilty plea after spending months decrying and denying the allegations. CBSN Los Angeles reports. Source

Representative Tulsi Gabbard is fighting for her spot on the next Democratic debate stage. Jada Yuan, a contributor at the Washington Post, joins CBSN’s “Red & Blue” to discuss Gabbard’s campaign strategy. Source

President Trump, who has repeatedly threatened to withdraw from NATO, surprised many by affirming the alliance’s purpose. Source