Daniel O'brien

Registered Lobbyist New Lobbyist
Disclosed Prior Position
Chief of Staff, Office of Senator Robert Torricelli; Chief of Staff, Office of Senator Joe Biden; Chief of Staff, Office of Senator Robert Menendez; Staff Director, U.S. Senate Committee on Foreign Relations
Lobby Filings
8
Clients
1
Firms
1
Years Active
2024–2025
Total Contributed
$31,600
Contributions
18
Recipients
5
Contrib Filings
4
Top Recipient Legislators
LegislatorPtyStTotal
Ruben Gallego D AZ $8,600
Timothy Kaine D VA $8,300
Kamala Harris D CA $2,000
Mark Warner D VA $1,000
Top Committees / PACs
PayeeCountTotal
KAINE VICTORY FUND 2 $6,000
GALLEGO FOR ARIZONA 2 $5,600
KAINE FOR VIRGINIA 2 $4,300
GALLEGO VICTORY FUND 1 $3,000
WYDEN FOR SENATE 2 $2,000
DEMOCRATIC PARTY OF VIRGINIA 1 $1,700
DONALD NORCROSS FOR CONGRESS 1 $1,500
MENENDEZ FOR CONGRESS 1 $1,500
FRIENDS OF SHERROD BROWN 1 $1,000
FRIENDS OF MARK WARNER 1 $1,000
HARRIS VICTORY FUND 1 $1,000
HARRIS FOR PRESIDENT 1 $1,000
STANTON FOR CONGRESS 1 $1,000
WYDEN FOR OREGON 1 $1,000

Lobbying Filings

Political Contributions

Recipient / Honoree Legislator Payee / Committee Date Amount
Hon. Wyden WYDEN FOR SENATE Dec 3, 2025 $1,000
Rep. Norcross DONALD NORCROSS FOR CONGRESS Sep 26, 2025 $1,500
Hon. Mark Warner Mark Warner (D, VA) FRIENDS OF MARK WARNER Jun 16, 2025 $1,000
Ruben Gallego Ruben Gallego (D, AZ) GALLEGO VICTORY FUND Nov 6, 2024 $3,000
Kamala Harris Kamala Harris (D, CA) HARRIS FOR PRESIDENT Nov 5, 2024 $1,000
Kamala Harris Kamala Harris (D, CA) HARRIS VICTORY FUND Nov 5, 2024 $1,000
Ruben Gallego Ruben Gallego (D, AZ) GALLEGO FOR ARIZONA Oct 22, 2024 $3,300
Ruben Gallego Ruben Gallego (D, AZ) GALLEGO FOR ARIZONA Oct 22, 2024 $2,300
Timothy Michael Kaine Timothy Kaine (D, VA) KAINE FOR VIRGINIA Jul 21, 2024 $3,300
Democratic Party of Virginia DEMOCRATIC PARTY OF VIRGINIA Jul 21, 2024 $1,700
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Contribution Filings (LD-203)

YearPeriodPostedStatusDoc
2025 Year End Jan 27, 2026 Active
2025 Mid Year Jul 30, 2025 Active
2024 Year End Jan 30, 2025 Active
2024 Mid Year Jul 30, 2024 Active