Independently verified. The Citizenship for Essential Workers Act was indeed Senator Padilla's first bill (S.747, 117th Congress). I fetched and confirmed his official press release, which states it was 'Padilla's first bill as a United States Senator' and would 'create an expedited pathway to citizenship for the over 5 million essential workers without permanent legal status' — matching the promise text nearly verbatim. I also fetched the official Congress.gov bill text (S.747 XML): sponsor Sen. Alex Padilla (D-CA), co-sponsor Sen. Warren, introduced March 15, 2021, and its status is 'referred to the Senate Committee on the Judiciary' — the bill was never enacted and did not pass. Padilla was the prime sponsor who authored and drove the effort (and reintroduced it in the 118th Congress), which is active leadership well beyond a single supporting vote, so CHAMPIONED (+0.75) is correct rather than FULL (it never became law) or ATTEMPTED (which would understate prime sponsorship). This label is party-neutral: any senator who makes a signature promise their first bill, prime-sponsors it, and reintroduces it, but sees it die in committee, warrants the same CHAMPIONED rating. Note: prior rationale said 'February 2021'; the official introduction date is March 15, 2021 — a minor date detail that does not affect the outcome. The prior CBS8 secondary source could not be re-fetched (repeated timeouts) so it is replaced here with the verified Congress.gov bill-text source.