Mitt Romney is the first candidate to receive a net negative swing in Gallup's tracking polling since the polling firm started measuring convention "bounces" in 1964.

According to the Gallup results, Romney lost a point of support in the before-and-after measure while President Obama gained a point of support. Before Romney, only Democrat John Kerry had seen an immediate negative effect — he also dropped a point in 2004. Before that, Democrat George McGovern did not see any effect in the 1972 election.

On Monday, Gallup also found that Romney's convention speech received the worst initial reaction since Bob Dole in 1996.

Gallup notes that this year's campaign has many similarities to 2004, so Obama might expect a similar lack of excitement from the 2012 Democratic National Convention going on this week in Charlotte. In 2004, the Republican convention bumped George W. Bush only 2 points.

"The Republican National Convention this year failed to generate a lot of excitement among voters nationwide," Gallup's Jeffrey M. Jones wrote. "It is not clear if that is a reflection of the Republicans' presentation, their nominee himself, or the fact that it came just before the Labor Day holiday. In any case, the net result is that Romney is no better positioned in the 2012 election after the convention than he was before it."