Bearing Arms shared a pollster's look at polling on guns.
And why the headlines don't end up matching reality.
Other issues exist such as misleading questions, phrasing that fails to address how strongly someone feels about a topic. This is touched on slightly in the last quoted paragraph, but it doesn’t point out that this can be a willful attempt on the part of some pollsters to try and manipulate public perception. After all, peer pressure is a thing, and it doesn’t only impact school-aged kids.