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

Donald TrumpDonald John TrumpAssange meets U.S. congressman, vows to prove Russia did not leak him documents A history lesson on the Confederacy for President Trump GOP senator: Trump hasn't 'changed much' since campaign MORE leads Sen. Marco RubioMarco RubioScarborough: Trump has chosen the 'wrong side' THE MEMO: Trump reignites race firestorm RNC spokeswoman: GOP stands behind Trump's message 'of love and inclusiveness' 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 CruzTed CruzThe media couldn't be more blatant in distorting Trump's words on Charlottesville Curtis wins GOP primary for House seat vacated by Jason Chaffetz Kimmel: Let’s make Trump a king so he has no power 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.