The new CBS News Battleground Tracker poll finds Joe Biden remains the first choice of Democrats. But other candidates are finding support. Ed O’Keefe explains. Source

WikiLeaks published the allegedly stolen CIA hacking tools Source

At least four people were shot Monday near a rally celebrating the Toronto Raptors’ NBA championship. Arrests have already been made. Don Dahler has the latest. Source

Pres. Trump to officially launch 2020 campaign; Sen. Warren, Rep. Clyburn tacking student debt Source

Gabriel Alexánder Pérez Vizcaíno is accused of being the liaison between the alleged hit men and the person who paid them Source

Dealing with climate change is a dollars-and-cents issue, but more than 500 global companies are staying mum on the issue, according to a nonprofit that pushes for corporate disclosure. Source

Egypt’s former president, Mohammed Morsi, the Muslim Brotherhood leader who rose to office in the country’s first free elections in 2012 and was ousted a year later by the military, collapsed in court during a trial and died, state TV and his family said. CBS News foreign correspondent Imtiaz Tyab reports. Source

A man who opened fire on a courthouse in Dallas was killed in a shootout with federal officers. He was a former Army private who had served for two years. His motive is still unknown. J.D. Miles from CBS Dallas/Fort Worth reports. Source

Gloria Vanderbilt, the heiress and designer, has died at age 95. Vanderbilt’s extraordinary life has been in the spotlight since she was a child. Maurice DuBois takes a look back at Vanderbilt’s life and career. Source

“There’s nothing that we propose here today that is at odds with what [the NRA] claims they stand for,” California congressman says Source