Poll Update

2016 Iowa President - Clinton 40%, Trump 40% (CBS/YouGov 8/17-8/19/16)

Population 987 Likely Voters
Margin of Error ±4.0 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 987 Likely Voters
Hillary Clinton 40%
Donald Trump 40%
Gary Johnson 7%
Jill Stein 2%
Someone else 4%
Not sure 7%
Probably won't vote 0%

2016 Iowa Senate: Grassley vs. Judge

Asked of 987 Likely Voters
Chuck Grassley, the Republican I 45%
Patty Judge, the Democrat 38%
Not sure yet 15%
Someone else 1%