The carbon-tax effort has also struggled to attract support from progressives and Democrats, who are concerned that the proposal isn’t really “revenue-neutral.” The latest news from the Evergreen State suggests that this effort may well be doomed:
[T]he Washington State Democratic Party [has gone] on record as opposed to CarbonWA’s I-732, joining the Washington State Labor Council and [the Washington Council of Machinists] in the no camp. I-732 is a complex tax swap proposal that would levy a carbon tax while also reducing sales and business & occupation taxes.
CarbonWA and other I-732 proponents contend that their tax swap is “revenue neutral” (meaning it would not increase or decrease state revenue). Nonpartisan legislative staff and the Department of Revenue don’t agree. According to DOR’s calculations, I-732 would reduce revenue by nearly $1 billion over the next four years....
CarbonWA’s endorsements page doesn’t list a single organization affiliated with the Republican Party or active in the conservative movement. And, as even CarbonWA has admitted, polling suggests right-leaning voters in Washington are incredibly hostile to the idea of levying a carbon tax.
I'm no expert in Washington state politics, but the Democratic Party is against it as not being truly revenue neutral, major unions are against, and no Republican leadership is for it. You're not going around these folks and getting a majority of the grassroots.
I think this thing is on the ballot and can't be changed. So support it and maybe some fluke will get it through, and if not then back to the drawing board.
Tom Steyer and friends have an alternate proposal for WA that I've heard about, but I suspect they're not going to get something on the same ballot. Maybe it'll be their turn next.