Lee Carroll Bollinger (born April 30, 1946) is an American lawyer and educator who is serving as the 19th and current president of Columbia University, where he is also the Seth Low Professor of the University and a faculty member of Columbia Law School. Formerly the president of the University of Michigan, he is a noted legal scholar of the First Amendment and freedom of speech. He was at the center of two notable United States Supreme Court cases regarding the use of affirmative action in admissions processes.