Donald Trump and Hillary Clinton remain national front-runners for their party's nominations less than three weeks before the Iowa caucus, according to a new NBC News|SurveyMonkey Weekly Election Tracking Poll released Tuesday morning. The online poll of registered voters shows Trump with 38 percent support among Republicans, with Ted Cruz receiving 20 percent and Marco Rubio receiving 11 percent.



CFOs in the U.S. and Asia have the U.S. presidential race at the forefronts of their minds. Getty Images

The numbers are similar to the previous week's tracking poll, which showed Trump at 35 percent and Cruz at 18 percent.

On the Democratic side, Hillary Clinton holds a 15 point lead over Bernie Sanders among Democrats nationwide. The Democratic front-runner gets the backing of 52 percent of voters, while 37 percent support Sanders. Former Maryland governor Martin O'Malley gets two percent. Sanders bests Clinton by a wide margin with voters under 24 years old. Sixty-eight percent of these younger Democrats say they back Sanders, while just 26 percent support Clinton.

The former secretary of state has only a small advantage over Sanders with men (46 percent to 43 percent), but she boasts a significant lead with women (56 percent to 32 percent.) She also has a huge lead over Sanders with African Americans (63 percent to 20 percent) and Hispanics (54 percent to 33 percent).

That data also closely matches the NBC News|SurveyMonkey poll's findings from last week, when Clinton registered 53 percent support and Sanders received 36 percent.