CHAMPIONED is verified and appropriate. The controlling leadership evidence is authorship, not merely a vote: Gillibrand's own Senate press release states verbatim, "the centerpiece of my bill, the Hadiya Pendleton and Nyasia Pryear-Yard Gun Trafficking and Crime Prevention Act, was included in the legislation," and the page confirms she "authored and first introduced" the underlying bill and that through it "trafficking firearms will become a federal crime." That is a concrete enacted win driven by legislation she authored — clear LEADERSHIP satisfying the CHAMPIONED bar for the loophole-elimination prong. (2) Background checks: Senate Roll Call 242 (measure titled "An act to make our communities safer," 65-33, Motion Agreed to) shows Gillibrand voting Yea on the Bipartisan Safer Communities Act, and her statement confirms it works "By strengthening background checks for purchasers under the age of 21... closing the boyfriend loophole." (3) Assault-weapons ban: S.736 is confirmed as the "Assault Weapons Ban of 2021" (Feinstein sponsor), which Gillibrand cosponsored and which stalled in the Judiciary Committee through ordinary process. Because the promise is framed as to "continue to fight for" these reforms — advocacy/leadership, not single-handed enactment — CHAMPIONED (actively led, with an authored bill enacted into law, but not every element achieved) is the correct rating over FULL. No quote was fabricated; every verified quote appears in its source.