Highest Positive, Lowest Negative

In the MSNBC.com rating window of 72,419 votes at 8:10 PM EDT, Friday, May 4, Ron Paul not only had the highest positive rating:

32% Paul
30% Romney
26% Giuliani
21% McCain
14% Huckabee
9% Brownback
9% Tancredo
8% Hunter
8% Thompson
6% Gilmore

...but he also had the lowest negative rating:

29% Paul
35% Romney
37% Huckabee
40% Giuliani
42% McCain
43% Gilmore
43% Hunter
45% Thompson
45% Tancredo
46% Brownback