misplaced choice

Solution 1:

Yes, a choice can meet a certain definition of misplaced.

One of the main sub-definitions of the word misplaced is

(of an emotion or action) directed towards a person or thing that does not deserve it

Collins English Dictionary

The choice of a candidate can certainly be described as not appropriate or correct, so this definition would support the usage in this context.

In addition, when considering synonyms of misplaced we have

misguided, unwise, ill-advised, ill-judged, misconceived, ill-considered

Collins English Thesaurus

As you can apply these adjectives to a "choice", whether of a candidate or not, you can replace them with a synonym, of which misplaced is one.