IA - 2016 Presidential Election: Hillary Clinton 43% - Marco Rubio 43% - (Gravis Marketing 06/04/2015)
Source: Gravis Marketing
Method: Phone
Date: 05/28/2015 - 05/29/2015
Voters: 12,156 (Registered voters)
Margin of Error: 3 %
Full Result:
- Clinton 43%
- Rubio 43%
