Walter Isaacson on Apple CEO Tim Cook taking stand in Epic Games case

Apple CEO Tim Cook will take the stand Friday in the trial between Apple and "Fortnite" maker Epic Games. Walter Isaacson, Tulane professor and an advisory partner at Perella Weinberg Partners, wrote the biography of Apple co-founder Steve Jobs in 2011. Isaacson joined "Squawk Box" on Friday to discuss what's at stake.