It didn't take long for the first Massachusetts Senate debate to turn nasty Wednesday night.

Sparring over the issue of guns, former Navy SEAL Gabriel Gomez (R) called an attack ad from Rep. Edward J. Markey (D) "beyond disgusting," while Markey retorted by calling his opponent's charge "ludicrous."

With that, the tone was set in the first of three televised debates ahead of the June 25 special election for the seat once held by Secretary of State John F. Kerry. During an hour-long back and forth, Gomez and Markey weren't shy about going after each other on issues ranging from abortion to foreign policy and the economy.