Measuring public opinion is an inexact science highly susceptible to manipulation through various means:

• Leading Questions: Pollsters can frame or word questions in a biased way to "manufacture" a desired response.

• Media and Elite Influence: Politicians and interest groups often use rhetoric, advertising or misinformation to sway public perception before it is even measured.

• Social Desirability: Respondents may lie or provide "insincere" answers to appear informed or to align with what they think is socially acceptable, making it hard to capture true beliefs.