The new Gallup tracking poll shows that the GOP convention and Mitt Romney’s speech really got the voters all lukewarmed up.

These results, based on Gallup Daily tracking conducted Aug. 31-Sept. 1, showed predictable partisan differences. Republicans overwhelmingly said the convention made them more likely to vote for Romney, although most would likely be voting for their nominee anyway. Democrats as predictably said the convention made them less likely to vote for Romney. Independents, a key group in any presidential election, were essentially split, with 36% saying the convention made them more likely to vote for Romney and 33% less likely — although 30% said they don’t know or that the convention made no difference.

Gallup has asked this question after selected conventions going back to 1984. Although the question was asked at differing time intervals after the conventions and in different survey contexts, the results give a rough approximation of the conventions’ relative impact.

This historical context shows that the 2012 GOP convention generated about the same impact as the two previous Republican conventions — in 2008, when John McCain was nominated for president, and in 2004, when George W. Bush was re-nominated.