Heavy advertising for Prop 22 was done on Facebook, and 7 in 10 US Adults use Facebook: https://www.pewresearch.org/fact-tank/2019/05/16/facts-about-americans-a

Heavy advertising for Prop 22 was done on Facebook, and 7 in 10 US Adults use Facebook: https://www.pewresearch.org/fact-tank/2019/05/16/facts-about-americans-and-facebook/ https://www.pewresearch.org/fact-tank/2019/05/16/facts-about... You may have missed this if you don't use it.