Trump's lead grows in post-debate poll
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Presidential candidate Donald TrumpDonald John TrumpOver 100 lawmakers consistently voted against chemical safeguards: study CNN's Anderson Cooper unloads on Trump Jr. for spreading 'idiotic' conspiracy theories about him Cohn: Jamie Dimon would be 'phenomenal' president MORE is enjoying his largest lead over the GOP field following Tuesday's presidential debate, a new poll finds.

The post-debate survey from Public Policy Polling (PPP) released Friday shows the real estate mogul with 34 percent support nationally among GOP voters, up 8 points from a mid-November poll.

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Trump's favorability has also grown. He's rated at 51 percent favorable, 37 unfavorable; an improvement over his 51-37 split in November.

“As the year comes to a close Donald Trump is just getting stronger,” Dean Debnam, president of PPP, said in a statement.

“His support for the nomination is growing but so is his overall favorability which suggests his ceiling could be higher than often assumed.”

Sen. Ted CruzRafael (Ted) Edward CruzGrassley agrees to second Kavanaugh hearing after GOP members revolt FEC: Cruz campaign didn't violate rules with fundraising letter labeled ‘summons’ Cruz criticizes O'Rourke on Dallas shooting: Wish he wasn't 'so quick to always blame the police officer' MORE (R-Texas) sits in second place, with 18 percent support, followed by Sen. Marco RubioMarco Antonio RubioNYT says it was unfair on Haley curtain story Rubio defends Haley over curtains story: Example of media pushing bias House lawmakers urge top intel official to probe national security threat of doctored videos MORE (R-Fla.), with 13 percent. But Cruz’s lead grew 4 points since the November poll, while Rubio remains stagnant.

“Ted Cruz is getting stronger while Marco Rubio stays in place,” Debnam said. “There’s a long way to go but it’s become pretty clear over the last few weeks who the main rival to Trump is at least for now.”

The next tier of GOP candidates all poll in the single digits. Former Florida Gov. Jeb Bush gets 7 percent, followed by retired neurosurgeon Ben Carson, at 6 percent. 

Carson has taken one of the biggest tumbles, dropping from 19 percent in the November poll. Following the terror attacks in Paris and California, Carson has struggled to demonstrate his national security bona fides and is sinking in the polls.

New Jersey Gov. Chris Christie is at 5 percent and former Hewlett-Packard CEO Carly Fiorina and former Arkansas Gov. Mike Huckabee both have 4 percent support. The rest of the candidates register at 2 percent or less.

On the Democratic side, Hillary ClintonHillary Diane Rodham ClintonTrump to declassify controversial text messages, documents related to Russia probe Hypocrisy in Kavanaugh case enough to set off alarms in DC Clinton: Hard to ignore 'racial subtext of virtually everything Trump says' MORE saw a slight drop of 3 points since the November poll, but maintains her lead over Sen. Bernie SandersBernard (Bernie) SandersProtecting democracy requires action from all of us Kavanaugh hires attorney amid sexual assault allegations: report Amazon probes allegations of employees leaking data for bribes: report MORE (I-Vt.), 56 to 28 percent. Former Maryland Gov. Martin O’Malley trails, with 9 percent.

The poll was conducted from Dec. 16 to Dec. 17, following the Dec. 15 GOP debate. PPP surveyed 532 GOP primary voters and 525 Democratic primary voters via phone and Internet. The margin of error is 4.3 percent.