Democrat who served as the interim Senator from Massachusetts in 2013 when longtime senator
He earned his J.D. from Northeastern University School of Law, after earning a degree in Sociology from Duke in 1991.
He has served on numerous political committees, including the Committee on Commerce, Science, and Transportation.
He and his wife, Stacy Cowan, have two children.
He was chosen to take John Kerry's Senate seat on February 1, 2013.