Brian J. Mast[1]

Current representative term began Jan 3, 2025[6]

Roster source Published Jul 17, 2026

Profile source ledger

Sources for the facts above

Each numbered note identifies the exact official response and record locator attached to the value currently displayed.

Identity
Open cited record
Official record
M001199
Record locator · xml_xpath
/MemberData/members/member[member-info/bioguideID='M001199']
Fetched
Jul 17, 2026, 06:00 UTC
Verified for publication
Jul 17, 2026, 06:00 UTC
Source availability
available · checked Jul 17, 2026, 06:00 UTC
Official correction evidence
No official correction evidence linked; this is not proof none exists.
Retrieved response
clerk.house.gov
Portrait
Open cited record
Official record
M001199
Record locator · json_pointer
/members/144/depiction
Fetched
Jul 17, 2026, 06:00 UTC
Verified for publication
Jul 17, 2026, 06:00 UTC
Source availability
available · checked Jul 17, 2026, 06:00 UTC
Official correction evidence
No official correction evidence linked; this is not proof none exists.
Retrieved response
api.congress.gov
Current office
Open cited record

Documented actions / recorded votes

Read each action at its official source.

Measure indexes organize selected official roll calls. Project Informed displays each recorded cast without inferring a position, comparison, score, intent, or belief.

No selected House vote sources yet.

House-specific vote sources have not been selected yet. Senate records are never transferred to or presented as a House member’s action.

Read the methodology

Official legislative activity

Published sponsored legislation

Sponsorship shows an affirmative legislative action. The absence of sponsorship is never treated as opposition.

No sponsored legislation record is published in the current dataset. Missing sponsorship data is not interpreted.

Party affiliation

Open cited record

Official record: congress.gov:M001199:house:2017
Record locator · xml_xpath: /MemberData/members/member[member-info/bioguideID='M001199']
Fetched: Jul 17, 2026, 06:00 UTC
Verified for publication: Jul 17, 2026, 06:00 UTC
Source availability: available · checked Jul 17, 2026, 06:00 UTC
Official correction evidence: No official correction evidence linked; this is not proof none exists.
Retrieved response: clerk.house.gov

Current term start

Open cited record

Official record: congress.gov:M001199:house:2017
Record locator · xml_xpath: /MemberData/members/member[member-info/bioguideID='M001199']
Fetched: Jul 17, 2026, 06:00 UTC
Verified for publication: Jul 17, 2026, 06:00 UTC
Source availability: available · checked Jul 17, 2026, 06:00 UTC
Official correction evidence: No official correction evidence linked; this is not proof none exists.
Retrieved response: clerk.house.gov