Senate LDA data Updated quarterly Lobbying disclosures

Constitution Lobbying

A thinner Senate LDA book on Constitution: fewer registrants file on this code, but each disclosure still names bills, agencies, and in-house lobbyists.

All issues → Methodology

The verdict

PlainInfluence tracks $6.8M in itemized Constitution lobbying disclosures across 69 filers, among them KOCH GOVERNMENT AFFAIRS, NATIONAL ASSOCIATION OF HOME BUILDERS, AMERICAN FEDERATION OF STATE COUNTY AND MUNICIPAL EMPLOYEES, ranking #74 of 79 tracked issues by spend.

#74
of 79 issues by spend
$6.8M
tracked Constitution lobbying
69
organizations lobbying
$98K
average per filer

Issue code: CON · 69 organizations lobbying on this issue

Total Lobbying Spend
$6.8M
Organizations
69

Constitution filing shape

Constitution (CON) shows $6.8M in tracked LDA spending across 69 filers, a lighter code by absolute outlay.

KOCH GOVERNMENT AFFAIRS leads this issue's filer table with $19.3M in all-issue lobbying; filings remain spread across 10 named organizations rather than collapsing into one registrant.

With fewer filers on Constitution, each quarterly disclosure carries more weight, and a small shift in registrant count can change the visible lobbying picture quickly.

Top Spenders

Rank Organization Total Lobbying
#1 KOCH GOVERNMENT AFFAIRS $19.3M
#2 NATIONAL ASSOCIATION OF HOME BUILDERS $6.7M
#3 AMERICAN FEDERATION OF STATE COUNTY AND MUNICIPAL EMPLOYEES $5.0M
#4 NEWS MEDIA ALLIANCE $4.6M
#5 SPLC ACTION FUND $3.8M
#6 NEWS CORPORATION $3.4M
#7 NATIONAL BEER WHOLESALERS ASSOCIATION $3.3M
#8 AMERICAN CIVIL LIBERTIES UNION $3.2M
#9 AMERICANS FOR PROSPERITY $3.2M
#10 PLANNED PARENTHOOD FEDERATION OF AMERICA $2.5M
#11 SUSAN B ANTHONY LIST $2.3M
#12 SERVICE EMPLOYEES INTERNATIONAL UNION CTW-CLC $2.3M
#13 NATIONAL RIGHT TO WORK COMMITTEE $2.0M
#14 SIERRA CLUB $1.6M
#15 AMERICAN COLLEGE OF OBSTETRICIANS AND GYNECOLOGISTS $1.6M
#16 KOCH GOVERNMENT AFFAIRS, LLC (FKA KOCH COMPANIES PUBLIC SECTOR, LLC) $1.5M
#17 AMERICANS FOR FINANCIAL REFORM $1.4M
#18 PHILANTHROPY ROUNDTABLE $1.1M
#19 PUERTO RICO STATEHOOD COUNCIL $1.1M
#20 LEAGUE OF WOMEN VOTERS OF THE U.S. $979K
#21 PROTECT THE 1ST, INC. $650K
#22 ESSENTIAL MINERALS ASSOCIATION (FKA INDUSTRIAL MINERALS ASSOCIATION-NORTH AMERI) $600K
#23 TAXPAYERS AGAINST FRAUD $480K
#24 FLINT COOPER, LLC $480K
#25 NATIONAL RIGHT LIFE COMMITTEE $476K
#26 INSTITUTE FOR JUSTICE $440K
#27 R-CALF UNITED STOCKGROWERS OF AMERICA $400K
#28 FREEDOM FROM RELIGION FOUNDATION $390K
#29 JEFFERSON RISING $385K
#30 KANSAS DEPARTMENT OF COMMERCE $340K
#31 INTERNATIONAL LEGAL FINANCE ASSOCIATION $320K
#32 PUERTO RICO LEGAL AND EDUCATIONAL FOUNDATION, INC. $310K
#33 PEOPLE FOR THE AMERICAN WAY $290K
#34 INDIAN GAMING ASSOCIATION $288K
#35 COZEN O'CONNOR $240K
#36 CSG ACTION $240K
#37 DUE PROCESS INSTITUTE $220K
#38 DEMAND PROGRESS ACTION, INC $206K
#39 VOTER REGISTRATION PROJECT $180K
#40 ELECTRONIC FRONTIER FOUNDATION $175K
#41 AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC $160K
#42 VOTER PARTICIPATION CENTER $160K
#43 JOB CREATORS NETWORK $120K
#44 TAKE BACK THE COURT ACTION FUND $100K
#45 CONCERNED WOMEN FOR AMERICA LEGISLATIVE ACTION COMMITTEE $92K
#46 NATIONAL COUNCIL OF JEWISH WOMEN $80K
#47 PROJECT ON GOVERNMENT OVERSIGHT $70K
#48 AMERICAN PROMISE, INC. $60K
#49 JAMES MADISON EDUCATION FUND, INC. $53K
#50 ERNEST N. MORIAL NEW ORLEANS EXHIBITION HALL AUTHORITY $50K

Registrant concentration on Constitution

Named filers on CON, ranked by all-issue lobbying total because the filer count is small.

KOCH GOVERNMENT AFFAIRS$19.3MNATIONAL ASSOCIATION OF HOME…$6.7MAMERICAN FEDERATION OF STATE…$5.0MNEWS MEDIA ALLIANCE$4.6MSPLC ACTION FUND$3.8MNEWS CORPORATION$3.4MNATIONAL BEER WHOLESALERS AS…$3.3MAMERICAN CIVIL LIBERTIES UNI…$3.2M
All-issue lobbying total among filers on Constitution · official public datasets

Source: U.S. Senate Office of Public Records, Lobbying Disclosure Act filings LD-2 quarterly lobbying disclosure filings (issue codes, registrants, expenditures) · 2024 Aggregated from quarterly LD-2 filings for issue code CON; covers 69 registered organizations across the 2023-2024 reporting period. Data current as of August 2026.

Questions on this issue code

How much is spent lobbying on Constitution?
$6.8M was reported on Constitution (CON) by 69 organizations in 2023-2024 Senate LDA filings. KOCH GOVERNMENT AFFAIRS is the top named filer on this code.
Who are the biggest spenders on Constitution lobbying?
Top filers on Constitution include KOCH GOVERNMENT AFFAIRS, NATIONAL ASSOCIATION OF HOME BUILDERS, AMERICAN FEDERATION OF STATE COUNTY AND MUNICIPAL EMPLOYEES. Rankings use each organization's all-issue lobbying total among registrants that filed on code CON.
How many organizations lobby on Constitution?
69 organizations filed on Constitution in 2023-2024, a narrow filer set on this code.

Data: official public datasets, 2023-2024. Verify filings at lda.senate.gov.