Dr. Peter Hotez, co-director of the Center For Vaccine Development at Texas Children’s Hospital, discusses the new Covid strain as well as his thoughts on a rare heart inflammation post vaccine. However, he says the Delta variant is a ‘far bigger concern.’ CNBC’s Meg Tirrell also discusses the new Delta Covid variant and reports on a study that says the Pfizer vaccine is highly effective against it after two shots and health experts say the strain is more transmissible than other variants. NBC’s Pete Williams discusses the Department of Justice reviewing a Trump-era probe of House Intelligence Democrats. Attorney General Merrick Garland also announced an expansion of the Department of Justice’s voting rights unit. NBC’s Shaquille Brewster reports on Chicago’s reopening as the city lifts nearly all Covid restrictions. The Chicago Cubs hosted an ‘Opening Day 2.0’ with a packed crowd at Wrigley Field. Plus, Comedian Jay Leno discusses Tesla’s new Model S Plaid. He tried to break the the car’s speeding record during a test drive on his show.