Capitol Clarity / Lobbyists / M / CONNIE MACK iv

CONNIE MACK iv: federal lobbyist

CONNIE MACK iv is named as a lobbyist on federal disclosure filings for 4 clients through Black Diamond Strategies LLC and 1 other registrant. The most recent filing naming them posted in October 2026. Issues reported include Energy/Nuclear, Transportation and Disaster Planning/Emergencies.

4Clients on filings
2Registrants
3Issue categories
2Years with reports

Former government positions listed

Filers must list covered executive or legislative branch positions held. As filed:

Clients and registrants

ClientRegistrantLatestIssues
THE ASSOCIATION OF AMERICAN RAILROADSBLACK DIAMOND STRATEGIES LLCQ3 2026Transportation, Homeland Security, Budget/Appropriations
MAMMOTH ENERGY SERVICES INCBLACK DIAMOND STRATEGIES LLCQ3 2026Energy/Nuclear
US HF CELLULAR COMMUNICATIONS LLCMACK STRATEGIESQ1 2026Disaster Planning/Emergencies
TRANSCANADA PIPELINES USA LTDBLACK DIAMOND STRATEGIES LLCQ4 2025Energy/Nuclear

Activity by year

YearClientsRegistrants
202632
202542

Pay is not disclosed for individual lobbyists. Filings do not confirm that records with the same name are one person, so this page may combine people who share the name CONNIE MACK iv. See the Capitol Clarity rankings and method.