All three cited sources were fetched and independently verified. (1) The Rounds Senate press release (PRIMARY) confirms Rounds reintroduced the Unleashing AI Innovation in Financial Services Act on July 30, 2025 alongside Heinrich, Tillis, and Kim, and explicitly frames him as leading the effort in the Senate — the attributed quote appears verbatim. (2) FedScoop (REPUTABLE_SECONDARY) confirms Rounds co-introduced the Economy of the Future Commission Act with Warner, identifies him as co-chair of the Senate AI Caucus, and carries the attributed quote verbatim. (3) The Booker Senate press release (PRIMARY) confirms the AI Grand Challenges Act is a bipartisan, bicameral bill with the exact sector list quoted, and lists Rounds as a lead sponsor. In every case Rounds is an author/co-lead/lead sponsor, not merely a voter or supporter, so the CHAMPIONED leadership bar (sponsored/authored/led) is satisfied. The promise was to CONTINUE working with colleagues to study AI and enact supportive-yet-risk-mitigating policies; the post-promise record shows sustained, demonstrable leadership across multiple bipartisan AI bills, which exceeds mere effort. The only caveat — that these bills are largely not yet enacted into law — is already disclosed in the rationale and does not defeat CHAMPIONED, because the controllable, measurable core of the pledge (to keep leading AI legislation) was met and exceeded; enactment depends on the full Congress, not on Rounds alone. No source was unreachable, no quote was fabricated, and the outcome does not overstate the evidence.