Viewers say Clinton won first debate Two polls of more than 1,500 people who watched the presidential debate between Hillary Clinton and Donald Trump conclude that Clinton won. Both are trying to win support from one-in-three voters still undecided Republican Democrat CNN/ORC poll 62% Clinton 27% Trump Public Policy Polling 51% Clinton 40% Trump CNN/ORC poll. Survey of 521 registered voters, of which 41% were Democratic, and 26% were Republican – this is 10% more Democratic and 2% less Republican than typical national telephone polls. Margin of error: 4.5%. Public Policy Polling: Survey of 1,002 debate watchers willing to answer poll after debate. Margin of error: 3.1% Sources: CNN/ORC, Public Policy Polling Pictures: Associated Press