Q: Do you have a favorable or unfavorable impression of Rob Portman?

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No opinion

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*Based on 667 interviews conducted Aug. 8-10, with a margin of sampling error of 4.5 percentage points.

The Washington Post - ABC News poll

In this poll:

Ryan's favorability ratings jump sharply among Republicans and independents

This Washington Post-ABC News poll was conducted by telephone August 8 to 12 2012, among a random national sample of 1,189 adults, including users of both conventional and cellular phones. The results from the full survey have a margin of sampling error of plus or minus 3.5 percentage points. Results among the 667 respondents interviewed Aug. 8 to 10 have an error margin of 4.5 points and 5.5 points for the sample of 522 respondents interviewed Aug. 11 to 12. Sampling, data collection and tabulation by SSRS of Media, Pa.