If someone called you and asked to participate in a survey, then they say ''donald trump hates mexicans and women. now that you know how likely are you to vote for him? '' this is an example of a/an

Leading question.

A leading question is one in which the researcher's way of asking might lead a respondent to answer in a biased, particular way. It often aligns with the goals of the researcher, and can harm the reliability and credibility of a survey.

In this case, the researcher is asking the question in a way that gives a bad image of Donald Trump, and would likely lead the respondent to answer in the biased way that the researcher is looking for.