JUDY WOODRUFF: President-elect Donald Trump continues to fill positions in his administration over this Thanksgiving holiday weekend. John Yang has more on one with added significance. JOHN YANG: To examine the role of the White House counsel and the challenges Donald McGahn faces tackling president-elect Trump's business holdings, we're joined by Jack Quinn, who was White House counsel under President Bill Clinton. JACK QUINN, Former White House Counsel: Thank you, John. JOHN YANG: When a White House counsel approaches an issue like figuring out what to do with a president's business holdings, is the client the president as a individual or the presidency as an institution?