| US CHAMBER OF COMMERCE | $320K | 1 | 2012 |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | $55K | 12 | 2014, 2020, 2016, 2012, 2018, 2022 |
| MACHINISTS NON PARTISAN POLITICAL LEAGUE OF THE INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS | $55K | 11 | 2014, 2020, 2016, 2012, 2018, 2022 |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | $51K | 12 | 2014, 2020, 2016, 2012, 2018, 2022 |
| UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION ACTIVE BALLOT CLUB | $50K | 12 | 2014, 2020, 2016, 2012, 2018, 2022 |
| AMERICAN FEDERATION OF TEACHERS, AFL-CIO COMMITTEE ON POLITICAL EDUCATION | $47K | 16 | 2024, 2014, 2020, 2016, 2012, 2018, 2022 |
| INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL NO. 12 VOLUNTARY LEGISLATIVE FUND | $45K | 10 | 2014, 2020, 2016, 2012, 2018, 2022 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | $45K | 23 | 2014, 2020, 2016, 2012, 2018, 2022 |
| INTERNATIONAL LONGSHORE AND WAREHOUSE UNION -- POLITICAL ACTION FUND | $45K | 19 | 2014, 2020, 2016, 2012, 2018, 2022 |
| CARPENTERS LEGISLATIVE IMPROVEMENT COMMITTEE UNITED BROTHERHOOD OF CARPENTERS AND JOINERS | $43K | 12 | 2014, 2020, 2016, 2012, 2018 |