Veronica Escobar’s predecessor in the congressional seat, 2020 hopeful Beto O’Rourke, has also publicly asked Mr. Trump not to come Source

NASA’s Cassini spacecraft ended its historic exploration of Saturn in 2017 and, slowly but surely, scientists are learning more about the ringed planet. Data from the 13-year mission helped scientists determine Saturn’s rings are much newer than the planet itself — and they’re disappearing. Source

Trump to visit Texas, Ohio in wake of shootings; Ohio Gov. pushing for ‘red flag’ gun laws Source

Three years after a spectacular on-pad explosion that destroyed an Israeli communications satellite, SpaceX boosted a Falcon 9 rocket into orbit Thursday night. The satellite will provide broadcast, broadband and high-speed data services across Africa. Watch the launch here. Source

FBI agents are calling for a federal law against domestic terrorist amid a rise in mass shootings. Without the legislation, law enforcement experts say it’s difficult to track extremists. Jeff Pegues joins CBSN to discuss. Source

Saturn’s rings have less than 100 million years to live — that’s not a lot considering the planet itself is 4 billion years old Source

Dayton police said Tuesday that the gunman had a “history of obsession with violent ideations … and expressed the desire to commit a mass shooting” Source

Senate Majority Leader Mitch McConnell one of the top Republicans being targeted by EMILY’s List, an organization that aims to get abortion-rights Democratic women in elected office. EMILY’s List president Stephanie Schriock joined “Red and Blue” to discuss that race, and what her organization is doing ahead of 2020. Source

Acclaimed author Toni Morrison, who is known for novels such as “Beloved” and “The Bluest Eye” has died. Morrison was awarded the Nobel Prize in Literature in 1993. Michelle Miller takes a look back at her life and legacy. Source

Wall Street stabilized as the Dow gained back nearly half of what it lost Monday when traders grew anxious over the escalating trade war with China. But American farmers are still worried. Mark Strassmann reports. Source