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| Jeff Merkley | Sponsor |
| Alejandro Padilla | Co-sponsor |
| Bernard Sanders | Co-sponsor |
| Chris Van Hollen | Co-sponsor |
| Christopher Murphy | Co-sponsor |
| Elizabeth Warren | Co-sponsor |
| John Fetterman | Co-sponsor |
| Peter Welch | Co-sponsor |
| Richard Blumenthal | Co-sponsor |
| Ron Wyden | Co-sponsor |
| Sheldon Whitehouse | Co-sponsor |
| Tammy Duckworth | Co-sponsor |