Poll: Trump leads Rubio by 18 points nationwide post-debate

Greg Nash

Donald TrumpDonald TrumpCardinal Dolan: 'Very touching moments' between Trump, Clinton Univision anchor: Trump's deportation plan 'a horror' Poll: Large majority says loser should accept election results MORE leads Sen. Marco RubioMarco RubioObama: Trump's rigged election talk 'not a joking matter' Obama: Trump and Putin have a 'bromance' Obama slams Rubio for Trump support MORE (R-Fla.) by 18 points nationwide after the tenth GOP presidential debate, according to a new survey.

Trump roars past Rubio with 39 percent to 21 percent, according to the NBC News/Survey Monkey poll released Friday.

Sen. Ted CruzTed CruzTrump steps up campaign spending in final stretch McMullin tops new poll of Utah voters Cruz: Voter fraud a challenge MORE (R-Texas) ranks third with 19 percent, while retired neurosurgeon Ben Carson and Gov. John Kasich (R-Ohio) tie for last with 8 percent apiece.

NBC News/Survey Monkey conducted its latest sampling of 6,433 registered voters via online interviews on Feb. 24-25. It has a 1.9 percent margin of error.

The contest in Houston Thursday evening marked Trump’s final confrontation with his four remaining GOP presidential primary rivals before Super Tuesday, the biggest day of the Republican nominating battle so far.

Trump leads the Republican field by roughly 13 percent before ballots are cast next week, according to the latest RealClearPolitics average of polls.