Paid for by taxpayers of course; and when they win, Seattle will raise taxes to pay for it.
We already pay unimaginable sums of money to King County and Seattle. Our property taxes have more than doubled in the last 4 years. Our friends who live in Seattle are now paying more every year in property taxes than they originally paid for their small house to begin with. Better that it gets diverted to businesses and people who were completely failed by these leftist politicians than the political cronies whose pockets it usually ends up in.