Viewers say Clinton won final debate A CNN/ORC poll of U.S. voters who watched the final presidential debate between Hillary Clinton and Donald Trump conclude that Clinton won. A YouGov poll of almost 40,000 respondents also puts Clinton ahead Republican Democrat CNN/ORC poll Clinton 52% Trump 39% YouGov poll Clinton 47.4% Trump 43.3% CNN/ORC poll: 547 registered voters surveyed after debate. Margin of error: 4.0% YouGov poll: Survey of 39,934 potential voters between October 5-19, including 1,844 new interviews in past 24 hours. Margin of error: 3.9% Sources: CNN/ORC, YouGov Pictures: Associated Press