Are there documented patterns of political preference based on appearance?
Note, I'd like to keep the answers focused on white people, as there are obvious relationships between race -> appearance and race -> partisanship.
Politics Stack Exchange is a question and answer site for people interested in governments, policies, and political processes. It only takes a minute to sign up.Sign up to join this community
I only have anecdotal evidence, but the answer is a resounding no.
I work in IT, and am about an hour from DC and Baltimore. The majority of people who work here are above average when it comes to education, dress up for work, and are very well spoken; so, most people would suspect them to be liberal, but they are mostly conservative.
With that being said, it is in WV, but the far eastern tip of the panhandle. So, as is known, location plays a much bigger role in political affiliation than appearance.
For example, the south is conservative. So, you will have people from all walks of life be conservative. Whether they are white collar workers, wealthy businessmen, blue collar workers, or rednecks.
The same applies in the northeast, and west coast. They are liberal bastions, but just cause someone is wearing fancy clothes in a city doesn't mean they are liberal. There are plenty of upper class republicans in these areas.
With that being said there are certain groups like hipsters that dress, let's just say exotically, that are most definitely liberal. Same with rednecks that wear rebel flag tshirts are definitely conservative. But these groups publically state their political affiliation by dressing to display their social groups. They might as well wear a sign saying who they support.
But, overall, for most people who dress traditionally there is no easy way to tell which political party they support.