A new CNN poll has Donald Trump locked in tight races with Hillary Clinton in three swing states. | AP Photo Trump leads Clinton in Ohio, locked in North Carolina, Nevada

Hillary Clinton and Donald Trump are in a dead heat in North Carolina and Nevada, but the GOP nominee has a 4-point advantage in Ohio, according to CNN/ORC polls released Monday.

The latest batch of swing-state polls show Clinton slightly edging out Trump in extremely tight races in North Carolina and Nevada. The former secretary of state tops Trump in North Carolina, 48 percent to 47 percent among likely voters, and Nevada, 46 percent to 44 percent. Trump, however, leads Clinton in Ohio, 48 percent to 44 percent.

Libertarian nominee Gary Johnson is at 4 percent in North Carolina, 7 percent in Nevada and 4 percent in Ohio. Green Party candidate Jill Stein, who is not on the ballot in North Carolina or Nevada, registers at 2 percent in Ohio.

Trump quickly celebrated on Twitter. "Wow, new polls just came out from @CNN Great numbers, especially after total media hit job. Leading Ohio 48 - 44," he wrote.

The surveys of 788 likely voters North Carolina, 698 likely voters in Nevada and 774 likely voters in Ohio were conducted Oct. 10-15 via landlines and cellphones and each have a margin of error of plus or minus 3.5 percentage points.