Kamala Harris’s acceptance speech and the second-largest diamond found in Botswana

Kamala Harris accepts her party’s presidential nomination amid rapturous applause at the Democratic National Convention in Chicago. Also on the programme: the America’s Cup kicks off in Barcelona and digital shoe brand Pet Liger launches its first physical product called Love Heels. Plus: Botswana unearths the world’s second-largest diamond.See omnystudio.com/listener for privacy information.