All lobbying filings

Sonosky, Chambers, Sachse, Endreson & Perry, LLP

Sonosky, Chambers, Sachse, Endreson & Perry, LLP filed a Q1 report for Assiniboine and Sioux Tribes of the Fort Peck Reservation on April 13, 2026, reporting $10,000 in lobbying income.

Lobbying for Assiniboine and Sioux Tribes of the Fort Peck Reservation

As filed: SONOSKY, CHAMBERS, SACHSE, ENDRESON & PERRY, LLP for ASSINIBOINE AND SIOUX TRIBES OF THE FORT PECK RESERVATION.

All filings by Sonosky, Chambers, Sachse, Endreson & Perry, LLP · Everything Assiniboine and Sioux Tribes of the Fort Peck Reservation has reported

Filing · LD-2 quarterly report Q1 report

Reporting period

1st Quarter 2026

Jan 1 - Mar 31 · Posted Apr 13, 2026

Income

$10,000

What the client paid this registrant for the period.

Client based in

Montana

Official filing document

Government bodies contacted 2

The chambers, agencies and offices the filer named. It does not say who inside them was contacted, or when. Each name opens every filing that named the same body.

Lobbying activity 1

Budget/Appropriations

FY 2027 Interior and Related Agency Appropriations IHS and BIA

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