Scott Wiener

State Building & Construction Trades Council of California OPPOSED Wiener SB 827 (transit-density override) — registered with Senate Transportation & Housing Committee. The labor split is the key 2018 differentiator: SBCTC was a "no" on Wiener density even before the bill died 6-4. A year later, SBCTC FLIPPED to SUPPORT of Wiener SB 50 (2019); SBCTC has also separately backed Atkins-authored housing bills via PAC channels.

State Building & Construction Trades Council of California FLIPPED to SUPPORT Wiener SB 50 (2019) — registered with Senate Housing Committee. This was the labor concession that broadened the coalition vs SB 827. The flip did NOT translate to passage — SB 50 still died on Senate Floor 18-15 on 1/29/2020, revealing that trade-assn coalition was not the binding constraint; floor whip was.

California Apartment Association registered SUPPORT for Wiener SB 50 (2019) at Senate Housing Committee. Important: CAA also registered SUPPORT for Wiener SB 827 (2018). CAA was on Wiener housing density bills BEFORE Atkins took up the cause with SB 1120/SB 9. R2 evidence 26408 framing that "industry trade-associations rather than rival authors" was what passed SB 9 is partly mistaken — the trade-assn coalition was present on Wiener bills too; the differential is procedural/whip, not industry.

California Building Industry Association registered SUPPORT for Wiener SB 50 (2019) at Senate Housing Committee, and ALSO for Wiener SB 827 (2018). Same coalition pattern as CAA — trade-assn support was not unique to Atkins-authored density bills.

California Association of Realtors CO-SPONSORED Wiener SB 50 (2019) — the strongest possible registered position. Compare to Atkins SB 9 Senate Housing stage (4/12/2021) where CAR was NOT on the registered support roster (later joined for Senate Floor 8/27/2021). CAR was MORE engaged with Wiener density than with Atkins density at the equivalent committee stage. This further undermines the "Pro Tem author signal" coalition hypothesis.

Sen. Anthony Portantino (Chair, Senate Appropriations 2018-2022) held Wiener SB 50 in committee as a two-year bill in May 2019, blocking floor consideration that year. Atkins as Pro Tem in 2020 used parliamentary maneuvers to extract SB 50 from Portantino's committee — Wikipedia: "Portantino objected to not being consulted about amendments." Bill still died on Senate Floor 18-15 on 1/29/2020 (six Dems no-vote-recorded including Bradford, Chang, Grove, Umberg — Atkins whip failure). This shows the structural limit of Pro Tem power: same-party committee chairs can block legislation Pro Tem favors.