THE BLOG
09/29/2010 10:52 am ET | Updated May 25, 2011

IA-Sen: 55% Grassley (R), 37% Conlin (D) (Rasmussen 9/23)

Rasmussen
9/23/10; 500 likely voters, 4.5% margin of error
Mode: Automated phone
(Rasmussen release)

Iowa

2010 Senate
55% Grassley (R), 37% Conlin (D) (chart)