A CNN /ORC And a Quinnipiac survey conducted Oct. 22-27 gave Ernst a lead over Braley , 49 % to 45 % . International poll shows Democrat Joni Ernst leading Iowa 's Senate race . Bruce Braley is up 49 % to 47 % over Republican Joni Ernst . That 's within the poll 's six percentage point margin of error .
A CNN /ORC International poll shows Democrat Joni Ernst leading Iowa 's Senate race . Bruce Braley is up 49 % to 47 % over Republican Joni Ernst . That 's within the poll 's six percentage point margin of error .