Explanation:
A teenager living near the U.S.-Mexico border who has a sense that immigration is a bad thing and after watching several local news reports, believes this even more strongly suggest that the news report stands to confirm his prior belief about immigration, a term called 'Confirmation Bias' in psychology.
Confirmation bias is the irrational tendency to search for, interpret, favor, and recall information in a way that affirms one's prior beliefs or hypotheses. it is a type of cognitive bias and a systemic error of inductive reasoning. people are known to have the tendency of interpreting ambiguous evidence to support their existing position and also display these bias when they gather information selectively, or when they interpret it in a biased way.