---
url: "https://questionstar.com/principles-of-survey-research/chapter-4/slide-118.html"
title: "Dewey Defeats Truman"
type: "lehrbuch-slide"
chapter: 4
chapterTitle: "Sampling"
slide: 118
---

# Dewey Defeats Truman

*1948: The Chicago Daily Tribune announces the wrong election result. President Harry Truman beats Thomas Dewey — against all polls. Reason: a biased…*

The World's Most Famous Headline Error

### Dewey Defeats Truman

1948: The **Chicago Daily Tribune** announces the wrong election result. President **Harry Truman** beats Thomas Dewey — against all polls. Reason: a biased, inaccurate opinion poll.

![Harry Truman holds up the newspaper with the false headline "Dewey Defeats Truman](/principles-of-survey-research/media/truman.png)

---

*Slide 118 of 274 · Chapter 4: Sampling · Principles of Survey Research · Dr. Paul Marx*