Support at 46% before naming Ryan, 47% after
PRINCETON, NJ -- Mitt Romney's standing in the presidential election campaign has not changed materially in the immediate days after his announcement of Wisconsin Rep. Paul Ryan as his vice-presidential running mate. The first four days of Gallup Daily tracking after Romney's announcement show 47% of registered voters saying they would vote for Romney and 45% for Barack Obama if the election were held today. The four days prior showed Romney at 46% and Obama at 45%.
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The lack of an immediate increase for Romney is consistent with Sunday's USA Today/Gallup poll that found a generally tepid reaction to the Ryan pick, especially in comparison to past vice-presidential choices.
Like this year, Gallup also did not find any significant change in voter preferences for the 2008 election after Obama and John McCain each named his running mate. However, in the 1996-2004 campaigns, the vice presidential choice seemed to have a more noticeable impact on voters.
Gallup cannot accurately assess the effect of vice presidential announcements on voter preferences prior to 1996, given the timing of polls and other campaign events in those years. Specifically, in many earlier elections, the vice presidential choice was made during the party's nominating convention, so it is not possible to isolate any change in voter preferences due to the vice presidential choice from changes associated with the party's conventions, which usually produce a bounce for the nominee.
Although the announcement of Romney's running mate will be one of the more significant events in the 2012 campaign, it has not done much to change voter preferences, at least initially.
Gallup Daily tracking in the coming days may reveal greater movement toward Romney, though the more days that pass after the Ryan announcement, the less likely it is that the movement will be due to choosing Ryan as opposed to other possible factors. The next scheduled major event that will have the potential to affect the race will be the Republican convention, which begins Aug. 27 in Tampa.
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Results are based on telephone interviews conducted as part of Gallup Daily tracking Aug. 11-14, 2012, with a random sample of 1,863 registered voters, aged 18 and older, living in all 50 U.S. states and the District of Columbia.
For results based on the total sample of registered voters, one can say with 95% confidence that the maximum margin of sampling error is ±3 percentage points.
Interviews are conducted with respondents on landline telephones and cellular phones, with interviews conducted in Spanish for respondents who are primarily Spanish-speaking. Each sample includes a minimum quota of 400 cell phone respondents and 600 landline respondents per 1,000 national adults, with additional minimum quotas among landline respondents by region. Landline telephone numbers are chosen at random among listed telephone numbers. Cell phone numbers are selected using random-digit-dial methods. Landline respondents are chosen at random within each household on the basis of which member had the most recent birthday.
Samples are weighted by gender, age, race, Hispanic ethnicity, education, region, adults in the household, and phone status (cell phone only/landline only/both, cell phone mostly, and having an unlisted landline number). Demographic weighting targets are based on the March 2011 Current Population Survey figures for the aged 18 and older non-institutionalized population living in U.S. telephone households. All reported margins of sampling error include the computed design effects for weighting and sample design.
In addition to sampling error, question wording and practical difficulties in conducting surveys can introduce error or bias into the findings of public opinion polls.
For more details on Gallup's polling methodology, visit www.gallup.com.