Rep. Mike Lawler (R-NY) said Hamawy, a retired U.S. Army combat surgeon, should be investigated if he wins in November.

Dr. Adam Hamawy had a close relationship with a co-conspirator in the 1993 World Trade Center bombing, known as the "Blind Sheikh."

Hamawy is the front-runner in Tuesday's primary for a solidly Democratic New Jersey congressional district.

Hamawy won the Democratic primary despite his close association with the spiritual mastermind behind the World Trade Center bombing.