Who is Tina Tchen, the attorney linked to Jussie Smollett messages?

Tina Tchen, the attorney and former chief of staff to first lady Michelle Obama, has garnered scrutiny after messages traded with Cook County State's Attorney Kim Foxx -- about the alleged hoax linked to actor Jussie Smollett -- emerged shortly before prosecutors dropped all charges against Smollett on Tuesday. Tchen started practicing law in 1983, after she graduated from Northwestern University’s Pritzker School of Law, and currently leads the Chicago branch of Buckley LLC. In between, she worked in the Obama White House, first as the director of the Office of Public Engagement and later as the first lady's chief of staff. -- More....