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

Donald TrumpDonald John TrumpThe Hill's Campaign Report: Democratic field begins to shrink ahead of critical stretch To ward off recession, Trump should keep his mouth and smartphone shut Trump: 'Who is our bigger enemy,' Fed chief or Chinese leader? MORE leads Sen. Marco RubioMarco Antonio RubioGOP group calls on Republican senators to stand up to McConnell on election security in new ads What the gun safety debate says about Washington Trump moves forward with F-16 sale to Taiwan opposed by China 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.

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Sen. Ted CruzRafael (Ted) Edward CruzIs this any way for NASA to build a lunar lander? GOP strategist predicts Biden will win nomination, cites fundraising strength 3 real problems Republicans need to address to win in 2020 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.