The Galveston Police Department issued an apology, after disturbing images of an arrest sparked outrage online. The photo, taken by a witness, shows white officers on horseback, leading a black man tethered to what looks like a leash. Jericka Duncan reports. Source

A first-of-its-kind study concludes that electric scooters emit about half as much pollution as cars — thanks to factors that riders don’t see. Source

The California law requires all presidential candidates to release five years’ worth of tax returns or they won’t be listed on the primary ballot Source

Jessie Balmert, state government reporter at the Cincinnati Inquirer, joined “Red and Blue” to discuss how Ohioans are reacting to President Trump’s planned visit to Dayton following the deadly shooting, as well as Ohio Governor Mike DeWine’s proposals to combat gun violence. Source

New details are emerging about the mass shooting in El Paso, Texas. The gunman traveled from a Dallas suburb to a Walmart near the border where he allegedly sought out Hispanics to shoot. Janet Shamlian reports. Source

CBS News’ Natalie Brand joins CBSN from Dayton, Ohio with new details on the shooter’s background, and Janet Shamlian is in El Paso, Texas with the latest on the investigation into the massacre there. Source

The National Rifle Association is engulfed in financial scandal. For the past decade, the NRA has helped block nearly all federal gun legislation. But Nancy Cordes reports on why its leaders are now taking aim at each other. Source

There is no specific federal law against domestic terrorism but FBI agents are demanding one. Jeff Pegues reports on why tracking down extremists in this country is so difficult. Source

FBI special agent John Bennet said they found evidence the Gilroy shooter was influenced by “a fractured ideology.” Source

The Galveston Police Department is a apologizing for the way officers arrested a black man over the weekend Source