Why Trump’s Approval May Be Inflated

A new Pew Research study finds bogus respondents make up between 4% and 7% of participants in opt-in online surveys in the United States.

Washington Post: “If bogus respondents are not detected and removed, Pew found, polls using opt-in online samples may overestimate approval of Trump and other political figures and policies by about two percentage points. That fairly small impact can be meaningful for presidents like Trump facing a close reelection bid, and are amplified for certain subgroups, including Hispanics.”