Democratic New York mayoral nominee Bill de Blasio, left, laughs with Christine Quinn, city council speaker and former mayoral hopeful, at a news conference Sept. 17. (Mario Tama/Getty Images)

Public Advocate Bill de Blasio (D) doesn't appear to be in any trouble in the New York mayor's race, with a new Quinnipiac poll showing him leading GOP nominee Joe Lhota 68 percent to 24 percent.

That's a slightly narrower margin than three weeks ago, when de Blasio led 71 percent to 21 percent. But it still suggests de Blasio will walk away from the election two weeks from now with a huge win.

Lhota hasn't done anything to knock de Blasio down. The frontrunner's favorable rating is a stellar 65 percent, compared to 23 percent unfavorable.

Lhota, meanwhile, is underwater at 31 percent favorable and 39 percent unfavorable.

Despite New York City's liberal lean, de Blasio would be its first Democratic mayor in two decades.

Here's the full poll.