The link only goes to 2015, but polling had already changed 15-18 points in favor of marriage equality by then. California had 48% vote against prop 8 in 2008, which was still ~8 points above the national level of support for same-sex marriage.
It's also worth noting that "super liberal" MA, which legalized same-sex marriage in 2004 via a state Supreme Court decision, failed multiple times in its legislature to ban it https://en.m.wikipedia.org/wiki/Same-sex_marriage_in_Massach... and multiple opponents of it were defeated in elections and replaced with proponents.
The link only goes to 2015, but polling had already changed 15-18 points in favor of marriage equality by then. California had 48% vote against prop 8 in 2008, which was still ~8 points above the national level of support for same-sex marriage.
It's also worth noting that "super liberal" MA, which legalized same-sex marriage in 2004 via a state Supreme Court decision, failed multiple times in its legislature to ban it https://en.m.wikipedia.org/wiki/Same-sex_marriage_in_Massach... and multiple opponents of it were defeated in elections and replaced with proponents.