All lobbying filings

CORNERSTONE GOVERNMENT AFFAIRS, INC.

Lobbying for 3 PROTON LITHIUM INC. · Privately-held lithium company

Filing 4th Quarter - Report

Reporting period

4th Quarter 2025

Oct 1 - Dec 31 · Posted Jan 7, 2026

Income

$50,000.00

What the client paid this registrant for the period.

Client based in

Nevada

Official filing document

Lobbyists on this filing 4

JAMES RICHARDS

Previously held: COS House Member Office (Pearce); Director IGA USDA; Appropriations Associate House Member Office (Skeen & Bonilla)
BRIAN HACKLER

Previously held: Deputy Chief of Staff, U.S. Senate; State Director, U.S. Senate; Field Representative, U.S. Senate; Non-commissioned Officer, U.S. Marine Corps.
SARAH VENUTO

Previously held: Senior Advisor(Manchin); Counsel, Comm Energy & Natural Resources Chief Counsel; Chief Counsel (Manchin); Staff Director, Comm on Energy & Natural Resources; Director, Office of External Affairs, Federal Energy Regulatory Commission
ELIZABETH TEED GRIFFIN

Previously held: Legislative Assistant, House Member Office (Westerman)

A "covered position" is a government job the lobbyist held in the 20 years before registering, which the law requires them to name. See the revolving door for former members of Congress across all filings.

Government bodies contacted 8

Bureau of Land Management (BLM)
Commerce, Dept of (DOC)
Executive Office of the President (EOP)
Export-Import Bank of the United States (EXIM Bank)
HOUSE OF REPRESENTATIVES
Interior, Dept of (DOI)
Natl Security Council (NSC)
SENATE

The chambers, agencies and offices the filer named. It does not say who inside them was contacted, or when.

Lobbying activity 1

Natural Resources

Helping 3PL engage with the appropriate federal agencies and members of congress regarding a lithium find on public lands (contacted the National Energy Dominance Council).

Source: federal Lobbying Disclosure Act filing, reproduced as filed. Bills are parsed from the activity descriptions.