He resigned as a prosecutor in early 2012 to run for the seat then held by retiring Congressman Barney Frank, and defeated Republican opponent Sean Bielat in the November 2012 election.
He resigned as a prosecutor in early 2012 to run for for the 4th district seat then held by retiring Congressman Barney Frank. He defeated Republican opponent Sean Bielat for the seat in the November 2012 election.