Adam Hamawy, an Egypt born doctor who volunteered at a Gaza hospital that the IDF found terror tunnels underneath and once interned with an organization later linked by U.S. authorities to Al Qaeda, emerged victorious Tuesday in the Democratic primary to replace retiring Rep. Bonnie Watson Coleman in New Jersey’s deep blue 12th Congressional District.

Hamawy, a vocal critic of Israel, was endorsed by several prominent progressive figures including Alexandria Ocasio-Cortez, Ilhan Omar, Rashida Tlaib, Ro Khanna and Bernie Sanders.

Hamawy’s past has drawn scrutiny. In 1994, he interned in Bosnia with the Benevolence International Foundation, a charity later identified in the September 11 Commission Report as part of a network that allegedly provided support to terrorist activities connected to Osama bin Laden. Federal authorities later alleged the organization was used as a front to help establish Al Qaeda operations in Europe.

Hamawy has never been charged with any terrorism related offense and has denied any wrongdoing. His campaign has described criticism of his association with the organization as politically motivated.

Questions have also been raised about Hamawy’s relationship with Omar Abdel-Rahman, the radical cleric known as the Blind Sheikh, whose followers carried out the 1993 World Trade Center bombing.

Hamawy testified as a defense witness during Abdel Rahman’s trial and challenged testimony from a government informant. Court records show he also argued that some of the cleric’s remarks were being taken out of context by prosecutors.

The Democratic nominee was also backed by political streamer Hasan Piker, who held a pre election rally on his behalf. Piker has repeatedly compared the IDF to Nazis and has faced criticism for remarks about Orthodox Jews.

With New Jersey’s 12th Congressional District considered safely Democratic, Hamawy is widely expected to become the district’s next member of Congress.