Researchers experimenting with psychedelics to treat addiction, depression and anxiety; Then, inside the corruption allegations plaguing Malta; And, Bill Whitaker interviews Shakira Source

Unsettling weather triggered an unusual warning by the weather service of a fire-induced tornado at an out-of-control forest fire that broke out north of Lake Tahoe on Saturday afternoon. Source

At least a dozen states have issued excessive heat watches and warnings as temperatures soar from the West Coast to the Southern Plains. CBS News meteorologist and climate specialist Jeff Berardelli joins CBSN to discuss. Source

The most far-reaching heat wave of the summer is now underway across the Western part of the U.S. More than 150 record high temperatures will be challenged through the middle of next week from San Antonio to Sacramento to Seattle. CBS News meteorologist and climate specialist Jeff Berardelli joins CBSN to discuss how long the heat wave will last. Source

President Trump spent part of his weekend attacking the U.S. Postal Service from his golf resort in New Jersey. The service says it needs more funding to handle additional mail-in ballots this November, or thousands may go uncounted. CBS News White House correspondent Weijia Jiang joins CBSN to discuss the latest from the Trump administration. Source

The future of the U.S. Postal Service remains uncertain as the agency finds itself in the middle of a high-stakes debate over how to vote in America. “Face the Nation” moderator Margaret Brennan joins CBSN’s Lana Zak to discuss her conversation with senior White House adviser Jared Kushner about whether or not the Trump administration is concerned with what that could mean for their own supporters who need to vote by mail. Source

Trump administration accused of election interference over changes to Postal Service; Philadelphia music academy continues with online lessons during pandemic Source

This week’s Democratic National Convention will be virtual for the first time in history because of the coronavirus pandemic. A recent CBS News battleground tracker poll shows Democrats like Joe Biden’s choice of Kamala Harris as his running mate. Ed O’Keefe reports. Source

Professional sports are coming back during the coronavirus pandemic, but without fans, service industry workers are still hurting. Stadium beer and food vendors are still out of work, and others normally employed at venues for gameday are no longer needed. Adriana Diaz reports. Source

Schools throughout the U.S. are set to reopen for in-person instruction, even as 34 states report coronavirus infection rates of over 5%. Some teachers are choosing to resign or retire rather than risk their health returning to the classroom. Tom Hanson reports. Source