Seventy-seven percent of Republicans say the GOP convention gave them a better impression of Romney, while 82 percent of Democrats say their party's convention improved their view of Mr. Obama. Among independents, 47 percent say the GOP convention gave them a better impression of Romney, and 45 percent said their opinion of Mr. Obama is improved after the Democratic convention.
Even after the party conventions, Republican vice presidential nominee Paul Ryan remains unknown to nearly half of voters nationwide. Views of him are divided, just as they were before the conventions. Opinions of Vice President Joe Biden are split now.
More than half of likely voters think Mr. Biden is honest and trustworthy. Fewer say that about Ryan, but a third of voters did not offer an opinion on this question.
Thirty-nine percent of voters think Biden would be able to serve as an effective president if that became necessary, but 49 percent do not. Likely voters are divided on this question about Ryan, but a quarter did not have an opinion.
More voters think Romney (42 percent) rather than Mr. Obama (32 percent) is running the more negative campaign. Fifteen percent volunteer that both candidates' campaigns are negative. As might be expected, most of each candidate's supporters say the opponent's campaign is more negative.
By more than three to one, voters describe this presidential campaign overall as more negative than positive compared to past campaigns. However, more than half of voters (52 percent) think this campaign is no different in tone than previous ones.
One of the goals of conventions is for political parties to rally their base of support, and it appears the Democrats have made progress on this front. Forty-three percent of Democrats now say they are more enthusiastic about voting compared to past elections, up from 27 percent in July. Republicans remain more enthusiastic than Democrats, but their enthusiasm level hasn't increased much from two months ago.
More from the poll:
See next page for full poll results.