He is polling at 36%. That's close to the 40% a candidate needs to win the September 10 primary outright and avoid an October runoff against the second-place finisher.
City Council Speaker
In potential runoff scenarios, De Blasio easily leads both Quinn and Thompson.
Here are the horserace numbers:
Bill De Blasio: 36%
Christine Quinn: 21%
Bill Thompson: 20%
Anthony Weiner: 8%
John Liu: 6%