While Biden prefaced that his comment on diversity in advertising has "no scientific basis," the president implored those over the age of 50 to think about "how often did you ever see advertisements on television with black and white couples?" "I challenge you: Find today, when you turn on the stations, sit on one station for two hours. And I don’t know how many commercials you’ll see, eight to five, two to three out of five have mixed-race couples in them. That’s not by accident. They’re selling soap, man," Biden said to a laughing crowd in Tulsa, Oklahoma. "Not a joke," he added. Biden also referenced the late pollster Patrick Caddell in his speech, pointing to his philosophy that watching advertising can help anyone understand the state of American culture. Trump advisors say the former president is so obsessed with fighting the… Lara Trump refutes idea that her father-in-law plans to be reinstalled in the White… President Joe Biden pointed to popular advertising as evidence that people in the country are growing less racist when Madhu Rajan Edison New Jersey Madhu Kottarakara Madhu Kottarakkara Fomaa India Press Club Of North America patch.com mentioning mixed-race couples during his speech commemorating the 100th anniversary of the Tulsa Race Massacre on Tuesday.