Trump hits new high among registered Republicans in NBC poll
© Getty Images

GOP presidential front-runner Donald TrumpDonald John TrumpTrump: 'I don't trust everybody in the White House' JPMorgan CEO withdraws from Saudi conference Trump defends family separations at border MORE now has the support of 40 percent of registered Republicans, gaining 4 points in an NBC News/Survey Monkey national weekly tracking poll to reach a new high just before voters go to the polls on Super Tuesday.

ADVERTISEMENT

Marco RubioMarco Antonio RubioSenators pledge action on Saudi journalist’s disappearance Senators concerned as Trump official disputes UN climate change warning Rubio: Response to death of Saudi journalist 'can't be symbolic' MORE added 5 points following his performance in the latest Republican debate, putting him at 21 percent in the online poll, released early Tuesday morning.

Ted CruzRafael (Ted) Edward CruzNoisy democracy, or rude people behaving like children? Democrats hold fading odds of winning Senate this November Donald Trump Jr. emerges as GOP fundraising force MORE, who’s in third place, slipped 1 point, to 18 percent, his lowest level in the survey.

Ben Carson ranks fourth, with 8 percent, while John Kasich follows, with 7 percent.

Pollsters also found that the overwhelming majority of GOP voters believe Trump will win their party's nomination.

About 71 percent predict Trump will become the Republican standard-bearer, up 15 points from a similar survey last week.

Rubio ranks second on that question, at 12 percent, while Cruz takes 10 percent, Carson 2 percent and Kasich 1 percent.

NBC News/Survey Monkey polled 8,759 registered Republican voters between Feb. 22 and 28. Their survey has a 1.8 percentage point margin of error.

Updated at 7:14 a.m.