A few years ago I made a visualization showing Blue Islands in the US based on the 2012 election.
I now wanted to update this using the latest election results for the 2016 obtained from this repo,
though the socio-economic data is still from 2012 for now.
The final results are not in yet and this viz contains the same issues as noted in the repo link.
I recommend opening the 2012 version in a prior tab to compare the two. More to come.
Images showing voting trends by state since 2008 in alphabetical order or by margin of winning party