Response review

I don't have reliable real-time information about who currently holds specific congressional seats, and my knowledge has a cutoff date that may not reflect recent elections, resignations, or special elections.

For Massachusetts's 4th Congressional District (MA-04), I'd recommend checking these authoritative sources:

- **house.gov** — Use the "Find Your Representative" tool with your ZIP code
- **Your state's Secretary of the Commonwealth website** (sec.state.ma.us)
- A quick web search for "MA-04 representative"

That said, for context: as of my last update, the MA-04 seat was held by **Jake Auchincloss** (Democrat), who took office in January 2021. However, I'd strongly encourage you to verify this through the official sources above, since I can't confirm current accuracy.

Is there anything else I can help you with regarding contacting your representative or understanding congressional districts?