Sarah Burgess, the executive producer and head writer of "Impeachment: American Crime Story," joins CBS News' Jill Schlesinger to discuss the current season of the FX series. Burgess explains what intrigued about the scandal involving President Bill Clinton and drew her to the characters of Linda Tripp, Monica Lewinsky and Paula Jones. She discusses Lewinsky's involvement with the project and why the story remains relevant 25 years later.