Isaac moved to Brookline in 1998, and began Kindergarten at the Lincoln School in 1999. He is an alumnus of Brookline High School, where he was part of School Within a School and Captain of the Varsity Downhill Ski Team. Isaac then continued his studies at MIT, double majoring in Economics and Political Science. While at university he worked for Congressman Joe Kennedy III, The Brookings Institution Metropolitan Policy Program, the office of Senator Harry Reid, and Hillary for America.
Isaac currently serves as the Policy Director for the Greater Boston Young Democrats. He has two siblings, Louis (currently at Brookline High) and Jane (currently in 6th grade at Heath School). Endorsed by PAX Brookline.