Mrs. Clinton was ahead, 45% to 41%, among likely voters in North Carolina, while Mr. Trump led 42% to 41% in Ohio.

Interviews for the three-day poll started Monday, the day after the latest presidential debate and three days after an 11-year-old tape surfaced showing Mr. Trump speaking lewdly about forcing himself on women…

In each state, the wild card in the race may be Libertarian candidate Gary Johnson. He had support from 9% of likely voters in both Ohio and North Carolina.

The former New Mexico governor’s strength in the poll primarily came from young voters and those who don’t identify as either Republican or Democrat.