I am a Trump supporter.
I do not believe in the ability of a group (so-called focus group) to picture the entire voting body it is supposed to reflect.
It is essentially a sample size of about a dozen people.
More than anything, they are manipulation tools used by those with an agenda. There is no way that a dozen people can be representative of a state.
I used to set up focus groups and trust me, they are hand picked according to the criteria asked them. They have to answer the questions according to a survey, and then and only then are they selected to be in a group. People put too much stock in these phony focus groups.
A focus group, by definition, is focused on a certain position. They all meet the same selection criteria.