Watch Paul Shaffer explain the Obama-Letterman friendship

David Letterman’s musical director, Paul Shaffer talks to Ari Melber about working on Letterman’s new Netflix show ‘My Next Guest Needs No Introduction’ and how late night comedy handles politics. The comedy star’s latest endeavor features high-profile interviews with a range of public figures, from fmr. President Barack Obama, to actor George Clooney, to activist Malala Yousafzai.