Donald Payne Jr., a six-term Democratic Congressman representing New Jersey’s 10th District, died of a heart attack that was likely a complication of his diabetes, Politico reports. Payne took office at the end of the 2012 session, taking the seat of his father, Donald Payne, who died of colon cancer. The 65-year-old Payne is survived by his wife Beatrice and their three adult triplets Donald III, Jack and Yvonne. His district is a solid blue seat, and it will be up to the local Democratic Committee to determine who will take Payne’s spot on the ballot for the November election.