Mark DeSaulnier
Representative, District 10
DemocratCommittees
- • House Committee on Transportation and Infrastructure
- • House Committee on Education and Workforce
- • House Committee on Ethics
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Fax Rep. Mark DeSaulnier
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Rep. Mark DeSaulnier's Committee Assignments
Rep. Mark DeSaulnier currently serves on the following 3 committees:
- •House Committee on Transportation and Infrastructure
- •House Committee on Education and Workforce
- •House Committee on Ethics
Faxing Rep. Mark DeSaulnier directly is one of the most effective ways to influence House legislation — especially on issues handled by these committees. Congressional staff log and tally constituent faxes, and high volume on a topic is reported directly to the member.
How to fax Rep. Mark DeSaulnier
Rep. Mark DeSaulnier is a Democrat Representative from California, serving since 2025. The most reliable way to contact Mark is by fax — congressional offices log every fax received and route them to the appropriate staff. Use the form above to send a fax in minutes. Your message is delivered to the official fax number on file for Rep. Mark DeSaulnier's House office.
Why fax Congress?
- ✓ Faxes are logged and counted by congressional staff — more weight than email
- ✓ Delivers directly to the office, no spam filter or contact form bottleneck
- ✓ You receive a certified delivery receipt proving your message was sent
- ✓ Takes 2 minutes — faster than calling and waiting on hold
Frequently asked questions
What is the fax number for Rep. Mark DeSaulnier?
The official fax number for Rep. Mark DeSaulnier is +12022255609. FaxSeal dials this number automatically when you submit the form above.
Does faxing my representative actually work?
Yes. Congressional offices track constituent contacts by type — phone calls, emails, and faxes. Faxes are taken seriously because they require more effort than a form email and are harder to ignore. High fax volume on a topic is routinely reported to the member.
How long does it take for my fax to arrive?
Most faxes are delivered within 1–5 minutes. You will receive a certified delivery receipt from FaxSeal once delivery is confirmed.
Do I need to be a constituent?
You can fax any member of Congress, but Rep. Mark DeSaulnier's office is most likely to respond to constituents from California. Your message will still be logged regardless of where you live.