CBS News poll analysis finds views on border situation depend on opinion about migrants, why they're trying to cross

Ask people what kind of issue the border is, and you see how it touches so many aspects of life: it's an issue of the economy, of security and even a social or humanitarian issue in the minds of most Americans. Little wonder it causes such heated debates. 

That also means that what Americans want done at the border is related to why they think people are trying to cross it in the first place.