Greenberg Quinlan Rosner conducted a focus group in the swing state of Nevada with undecided voters or weak supporters of either candidate who watched Sen. Barack Obama's speech last night.
Key findings:
After viewing the speech, more than 1-in-4 of these swing voters moved from undecided to supporting Barack Obama or from supporting John McCain to undecided.
Obama achieved gains on every personal attribute tested in this exercise, with the most dramatic movement coming on some of the most important measures in our polling - 'on your side,' 'has what it takes to be President,' and 'will keep America strong.'
In a head-to-head match-up with John McCain on which candidate would better handle a series of issues, Obama again gained ground on every measure, with the most significant movement coming on 'national security,' 'strengthening America's relationships with other countries,' and 'sharing my values.'