Vietnamese Americans used to be reliably Republican, but then the GOP decided to start ignoring them as we have with literally almost every other minority group. I believe McCain was the last GOP nominee to do well with Vietnamese. (
http://www.npr.org/sections/itsallpolitics/2015/09/16/439574726/how-asian-american-voters-went-from-republican-to-democratic)
Overall, Asians vote heavily democratic:
- Obama 2008:
62% of Asians (
http://www.pewhispanic.org/2009/04/30/dissecting-the-2008-electorate-most-diverse-in-us-history/)
- Obama 2012:
71% of Asians (
http://www.politico.com/story/2012/12/poll-obama-won-71-of-asian-vote-085013)
- Clinton 2016:
65% of Asians (
http://www.nbcnews.com/news/asian-america/analysis-how-exit-polling-missed-mark-asian-americans-n682491)
Bit surprised to see Hillary do worse w/ Asians then Obama.
