Rep. Michael Paymar, who wrote the background check bill, said he was surprised at how quickly Rahamim picked up on the issues.
‘‘At 17 years old, he’s figured the lobbying aspect out, which is not easy to do,’’ he said. ‘‘He’s right in there, talking strategy and sharing his ideas.’’
Those who have worked with Rahamim in the past month marvel at how he has approached gun violence as a national problem — not just a crusade for his father.
‘‘Sometimes a personal tragedy makes somebody a champion,’’ Paymar said. ‘‘At the end of the day, I hope he really sees a payoff.’’