Clinton dominant in second debate Polls of more than 1,300 people who watched the town hall-style debate between Donald Trump and Hillary Clinton – with questions from the audience and others posed by moderators – conclude that Clinton won Republican Democrat CNN/ORC poll Clinton 57% Trump 34% YouGov poll Clinton 47% Trump 42% CNN/ORC poll. Poll of 537 registered voters surveyed in the immediate aftermath of the debate. Margin of error: 4.0%. YouGov poll: Survey of 812 registered voters who watched the debate. Margin of error: 3.9% Sources: CNN/ORC, YouGov Pictures: Associated Press