Answer:
I do believe that physical characteristics are also part of the assessment process that a voter does to select the candidate that they want. Essentially, because, as the adage goes, appearances matter.
When a person is researching candidates to elect, of course the first course of action for them is to seek the way the person thinks about certain issues, their actions, their plans, and their experience on a specific field. The person will study the government plans, the ideas, the ideals, and the principles, as well as the points of view and behaviors, of a candidate. But appearances will also play a vital role in how people choose their candidates.
This does not mean necessarily that people will be swayed entirely to vote one way or another just by physical appearance, but this feature does play a role in decisions. So for example, a person whose tendencies are fascist, or towards only whites, will look at a candidate from another origin, and despite his/her proposals being the best, will never give that person his/her vote. The same will happen with how a person dresses, and presents themselves to the public. If you see someone who wears ugly-looking, frayed t-shirts and jeans to a campaign rally, you, as a voter, will be less likely to go and place your vote for that candidate. But if the person presents him/herself, with grace, well dressed, professional, you are more likely to vote for them, or at least to pay better attention to the other portions of the process of electing the right person: principles, ideals, ideas, and proposals.