If all politics is local, most locals cared about national politics on Election Day 2017. According to Politico, half of Virginia voters cited Trump was a reason for their vote. This backlash led to the most significant gains for Democrats since 1899.
Democrats came up short on Tuesday with losses in both GA and SC. People and pundits will go over the ‘should have, would have, could have’ list for the future. There will be plenty of time to analyze and reflect the data as it become available.