Princeton Forecaster Called Clinton a 99% Lock, Then Ate a Bug on CNN

■ The claim
Sam Wang's Princeton Election Consortium gave Clinton a greater than 99 percent chance in one version of its model (93 percent in its final revised projection), calling the race for her in October. On CNN's Smerconish shortly before the election, Wang said he would eat a bug if Trump won more than 240 electoral votes.
■ What actually happened
Trump won well over 240 electoral votes. On November 12, 2016, Wang returned to CNN and ate a cricket on air. He later said he had underestimated the size of correlated polling error and that his false certainty was the big lesson.
■ The proof
The Electoral College result, Wang eating the bug on CNN, and his own published admission that he made a mistake.
■ Original reporting
- Princeton Election Consortium: Final Projections 2016 (Nov 8, 2016)https://election.princeton.edu/articles/final-projections-2016/
- Daily Kos: Five Reasons Nate Silver is Wrong, Sam Wang is Right, Hillary Is 99% Likely to Winhttps://www.dailykos.com/stories/2016/11/6/1592120/-Five-Reasons-Nate-Silver-is-Wrong-Sam-Wang-is-Right-Hillary-Is-99-Likely-to-Win
- Political Wire: final forecasts roundup listing Princeton at 99%https://politicalwire.com/2016/11/08/the-final-forecasts-2/
■ Corrections, findings & records
- CBS SF: Polling expert who promised to eat a bug gulps cricket on CNN (Nov 12, 2016)https://www.cbsnews.com/sanfrancisco/news/princeton-polling-expert-promised-to-eat-a-bug-if-trump-won-eats-cricket-cnn/
- Daily Princetonian: Professor eats bug on live television, discusses polling errorshttps://dailyprincetonian.com/article/2016/11/u-professor-eats-bug-on-live-television-discusses-polling-errors-in-2016-election
- Pacific Standard: Meet a Polling Analyst Who Got the 2016 Election Totally Wrong (Wang interview)https://psmag.com/?p=18324
- Princeton Election Consortium: Wang's post-mortem post on keeping his word about the bughttps://election.princeton.edu/?p=801
■ Wayback Machine copies
Stories sometimes get edited after publication. These links open the Internet Archive's earliest snapshot of each original.
- Archive copy: Princeton Election Consortium: Final Projections 2016 (Nov 8, 2016)https://web.archive.org/web/2/https://election.princeton.edu/articles/final-projections-2016/
- Archive copy: Daily Kos: Five Reasons Nate Silver is Wrong, Sam Wang is Right, Hillary Is 99% Likely to Winhttps://web.archive.org/web/2/https://www.dailykos.com/stories/2016/11/6/1592120/-Five-Reasons-Nate-Silver-is-Wrong-Sam-Wang-is-Right-Hillary-Is-99-Likely-to-Win
- Archive copy: Political Wire: final forecasts roundup listing Princeton at 99%https://web.archive.org/web/2/https://politicalwire.com/2016/11/08/the-final-forecasts-2/
■ Grade
BAD CALL: A confident prediction or dismissal that turned out wrong. Not a lie, but on the record. How we grade →