Just weeks after leaving office, Joe Biden is laying the groundwork for his post-presidential era in Hollywood. One of the entertainment industry's biggest talent firms, Creative Artists Agency, which represents actors including Brad Pitt and Julia Roberts, said Monday it had signed Biden to its roster. Biden was previously a CAA client from 2017 to 2020, following his second term as vice president during the Obama administration. During his earlier stint with CAA, he released his memoir, "Promise Me, Dad: A Year of Hope, Hardship and Purpose" and launched his "American Promise Tour," which sold more than 85,000 tickets nationwide,...