Over the past few months, Donald Trump has been leading the Republican presidential race but now, retired neurosurgeon Ben Carson seems to be taking the lead.

Just last week, Trump and Carson went head-to-head with the latter having only a four-point lead against the real estate mogul, according to the CBS News/New York Times poll.

Now, a new poll conducted by NBC News and Wall Street Journal, the results of which were released on Monday, showed that Carson garnered an increase in the percentage.

The poll asked 400 GOP primary voters from Oct. 25 to 29, which also means that the results covered respondents before and after the CNBC debate that happened on Oct. 28, CNN noted.

Carson garnered 29 percent support while Trump had 23 percent, making a six-point difference between the two Republican front-runners.

Following Carson and Trump are Senator Marco Rubio of Florida who garnered 11 percent support; Texas Senator Ted Cruz at 10 percent; and then Florida's former governor Jeb Bush at eight percent.

Former Hewlett-Packard (HP) CEO Carly Fiorina is losing her trail as she now only has three percent support, placing her on the same position as former Arkansas governor Mike Huckabee, Governor Chris Christie of New Jersey and Governor John Kasich of Ohio.  Kentucky Senator Rand Paul only has two percent.

Meanwhile, over to the Democratic side, Hillary Clinton still takes the lead in the race.

The new poll revealed that 62 percent of Democrats picked Clinton as their first choice, as opposed to the 31 percent who chose Bernie Sanders, MSNBC reported.

Maryland's former governor Martin O'Malley is way far behind with only a single digit rating at three percent.

The report also stated that 84 percent of Democrat voters believe that Clinton has the best chance of winning the Democratic nomination, while only 12 percent believe Sanders has the best shot.

Majority (81 percent) also say that among all Democratic candidates, Clinton is most likely to win the presidential race.