Answer
See the explanation
Work Step by Step
The portion of Americans who feel that Republicans do not care about the personal struggles of immigrants is likely much lower than 96.4%. Ed is a liberal political commentator and therefore his show is likely to draw a liberal audience. Because the majority of his viewers are likely to at least somewhat share his viewpoints, and because he may have affected their feelings towards Republicans with his "monologue that included various issues on which Republicans could not be trusted," the respondents to Ed's poll likely do not represent the viewpoints of Americans in general.
Look for evidence that supports or refutes the credibility of Ed's poll. Focus on how his political viewpoints and the nature of his show might affect the feelings and opinions of his viewers.