Complex sentence: Since 1976, he has served as the U.S. Representative for (redistricted from the 7th district in 2013), which includes most of Boston's northern and western suburbs, such as Medford and Framingham.
Split into simpler sentences: Since 1976, he has served as the U.S. Representative for. The district, numbered as the 7th District from 1976 to 2013, includes most of Boston's northern and western suburbs, such as Medford and Framingham.