Robert William Chamberlin
Government post most recently disclosed: Chief Counsel, US Senate Commerce Committee; Senior Counsel, US Senate Commerce Committee; Assistant Counsel, House Transportation and Infrastructure Committee.
The register gives a lobbyist a separate record at each firm. This person is very likely also listed as Robert Chamberlin (Signal Group Consulting, Llc), with the same name and the same covered position. The register itself does not confirm these are one person.
Lobby filings counts every filing that names this lobbyist, amendments included. Contributions come from the twice-yearly LD-203 reports, counting the current version of each report once.
Lobbying filings
Political contributions
| Recipient or honoree | Payee | Date | Amount |
|---|---|---|---|
| Deb Fischer | Paid to FISCHER FOR SENATE | Jun 24, 2026 | $1,500 |
| Roger Wicker | Paid to RFW PAC | Jun 15, 2026 | $5,000 |
| Ted Cruz | Paid to TED CRUZ VICTORY FUND | May 11, 2026 | $5,000 |
| NRSC | Paid to NRSC | Apr 23, 2026 | $3,750 |
| John Cornyn | Paid to TEXANS FOR CORNYN | Mar 31, 2026 | $2,000 |
| Ashley Hinson | Paid to ASHLEY FOR IOWA | Mar 31, 2026 | $1,500 |
| Kelly Ayotte | Paid to KELLY FOR NEW HAMPSHIRE | Mar 16, 2026 | $1,000 |
| Pete Ricketts | Paid to RICKETTS FOR SENATE | Feb 15, 2026 | $1,000 |
| NRSC | Paid to NRSC | Jan 23, 2026 | $3,750 |
| John Thune | Paid to FOJT | Dec 18, 2025 | $3,500 |
Committees given to most
The payees on this lobbyist's current reports, by total given. The payee is stated on the report; the legislator behind a committee is not.
| Payee | Contributions | Total |
|---|---|---|
| NRSC | 25 | $90,626 |
| HEARTLAND VALUES | 2 | $10,000 |
| WINNING FOR AMERICA | 3 | $8,000 |
| RFW PAC | 2 | $8,000 |
| NC RED | 2 | $6,000 |
| WALKER FOR SENATE | 2 | $5,800 |
| ALABAMA FIRST | 3 | $5,800 |
| FISCHER FOR SENATE | 4 | $5,500 |
| FRIENDS OF JOHN THUNE | 1 | $5,300 |
| TED CRUZ VICTORY FUND | 1 | $5,000 |
| HEARTLAND VALUES PAC | 1 | $5,000 |
| MORAN VICTORY | 2 | $4,000 |
| FOJT | 1 | $3,500 |
| WINNING FOR AMERICA PAC | 1 | $3,300 |
| CRUZ VICTORY | 1 | $3,300 |
Contribution reports (LD-203)
Every report the register holds. A report replaced by a later version is listed but not counted.
| Period | Filed | Counted | Official report |
|---|---|---|---|
| Mid Year 2026 | Oct 12, 2026 | Yes | Open |
| Year End 2025 | May 12, 2026 | Yes | Open |
| Year End 2025 | Mar 3, 2026 | Replaced | Open |
| Mid Year 2025 | Oct 7, 2025 | Yes | Open |
| Year End 2024 | Apr 21, 2025 | Yes | Open |
| Mid Year 2024 | Sep 13, 2024 | Yes | Open |
| Year End 2023 | Jan 30, 2024 | Yes | Open |
| Mid Year 2023 | Jul 31, 2023 | Yes | Open |
| Year End 2022 | Jan 26, 2023 | Yes | Open |
| Mid Year 2022 | Jul 26, 2022 | Yes | Open |
| Year End 2021 | Jun 10, 2022 | Yes | Open |
| Year End 2021 | Jan 31, 2022 | Replaced | Open |
| Mid Year 2021 | Nov 16, 2021 | Yes | Open |
| Mid Year 2021 | Aug 2, 2021 | Replaced | Open |
| Year End 2020 | Jan 29, 2021 | Yes | Open |
| Mid Year 2020 | Jul 31, 2020 | Yes | Open |
| Year End 2019 | Jan 30, 2020 | Yes | Open |
From reports filed under the Lobbying Disclosure Act: LD-2 reports name the lobbyists who worked on each issue, and LD-203 reports list their political contributions twice a year.