Likely voters in 13 battleground states picked Hillary Clinton Hillary Diane Rodham ClintonButtigieg stands in as Pence for Harris's debate practice Senate GOP sees early Supreme Court vote as political booster shot Poll: 51 percent of voters want to abolish the electoral college MORE as the winner of the third and final presidential debate, according to a new poll.

ADVERTISEMENT

Almost half, 49 percent, in the CBS News Battleground Tracker poll released Thursday morning said the Democratic nominee won the debate Wednesday night, compared to 39 percent who said Republican Donald Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE was the winner.

Twelve percent called it a tie.

Trump during the debate would not say if he would accept the results of the election, which he has called "rigged."

The CBS News poll found Trump supporters split on that issue heading into the debate: 33 percent said candidates should accept election results, 36 percent said they should not agree to such a pledge, and another third had no opinion.

Nearly all Clinton supporters said candidates should accept election results.

CBS News interviewed 934 likely voters who watched the debate in Arizona, Colorado, Florida, Georgia, Iowa, Michigan, New Hampshire, Nevada, North Carolina, Ohio, Pennsylvania, Virginia and Wisconsin. The new poll has a margin of error of 3.8 percentage points.