Trump is supported by 33 percent of like GOP voters, giving him a 19-point lead over his nearest rival, according to a Franklin Pierce University/Boston Herald poll released Monday evening.

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Ted Cruz runs second, with 14 percent, followed by John Kasich, at 12 percent, Jeb Bush, at 9 percent, Marco Rubio, at 8 percent, and Chris Christie, at 7 percent.

That poll indicates support for Trump is firming up. He has gained 7 points since the same poll last month. Kasich has also gained 4 points, while Rubio and Christie each shed 4 points.

Republicans have been vying for top spots behind Trump in the Granite State, which hosts the first-in-the-nation primaries Feb. 9 and comes eight days after the Iowa caucuses.

On the Democratic side, Sanders has also consolidated support for a 16-point lead over Hillary Clinton, 55 percent to 39 percent, according to the poll

That's a 7-point increase for Sanders from last month and a 7-point decrease for Clinton — a 14-point swing in one month favoring Sanders.

Clinton's favorability has also dropped, from 83 percent in December to 74 percent in the latest poll, while Sanders has risen from 85 percent to 90 percent over the past month.

The survey of 444 likely GOP primary voters and 408 Democratic primary voters was conducted Jan. 20-24 via landlines and cellphones with a margin of error of 4.7 points for Republicans and 4.9 points for Democrats.