Donald Trump maintains his spot atop the 2016 GOP presidential field, according to a new CBS News poll that shows outsider candidates drawing 63 percent of the vote.

The real-estate mogul garners 27 percent support in the poll, the same number he drew in the last edition of the poll one month ago.

Ben Carson continues to place second with 21 percent support, down 2 points since the last poll.

Carson is followed by Sen. Ted Cruz (R-Texas) with 9 percent support and Sen. Marco Rubio (R-Fla.) with 8 percent support. Former Florida governor Jeb Bush and former business executive Carly Fiorina tie for fifth place with 6 percent support each.

Trump, Carson, Cruz, and Fiorina – who are all running on an anti-establishment platform – combine for 63 percent of the vote.

Eighty-four percent of respondents say Trump has strong leadership qualities, compared to 72 percent who said the same of Carson, and 60 percent who thought Fiorina was a good leader.

However, Trump is also perceived to be the least honest candidate, with only 53 percent of voters saying they can trust the businessman, compared to 81 percent who say they trust Carson and 60 percent who trust Fiorina.

Trump is also the least favorable candidate in the field, with 53 percent of respondents in the survey saying they do not view him positively. Bush places second in that category, with a 48 percent unfavorable rating.

The poll sampled 419 Republican primary voters by telephone from Oct. 4 – 8. The margin of error is 5 percent.