Change in voter registration since Parkland shooting among 18 to 29-year-olds:AZ: +8.2%FL: +8%IN: +9.9%MN: +4.7%NC: +5.5%NV: +6.6%OH: +6%PA: +16.1%VA: +10.5%WI: +5.6%Worried yet, @GOP? — Brian Tyler Cohen (@briantylercohen) July 26, 2018