Poll Update

2016 Iowa President - Trump 40%, Clinton 39% (CBS/YouGov 7/13-7/15/16)

Population 998 Likely Voters
Margin of Error ±4.8 percentage points
Polling Method Internet
Source CBS/YouGov
This poll asked respondents 2 questions tracked by HuffPost Pollster. Read our FAQ.

2016 Iowa President: Trump vs. Clinton

Asked of 998 Likely Voters
Donald Trump 40%
Hillary Clinton 39%
Someone else 12%
Not sure 8%
Probably won't vote 0%

2016 Iowa Senate: Grassley vs. Judge

Asked of 998 Likely Voters
Chuck Grassley, the Republican I 45%
Patty Judge, the Democrat 37%
Not sure yet 16%
Someone else 2%