Convention bounce

[2] Bill Clinton benefited from one of the largest bumps in history after the Democratic National Convention in 1992, climbing by as many as 30 points in the polls, however this was assisted by Independent Ross Perot, who at the time was polling at 20%, withdrawing from the race during the Democratic convention.

Some party leaders blaming former primary challenger Pat Buchanan's fiery and divisive speech, which aired in primetime due to a scheduling delay.

[6] Polls indicated a small bounce for 2008 Democratic presidential nominee Barack Obama after his party's convention in August,[7] but as expected, much of it evaporated during and after the Republican convention the week following, yielding GOP candidate John McCain a small lead in several polls.

[10] The RealClearPolitics polling index revealed the 2012 convention bounces for President Obama and GOP challenger Mitt Romney to be comparably smaller than in past elections.

[11] In 2016, news sources and polls differed greatly on the size of the convention bounces received by Republican Donald Trump and Democrat Hillary Clinton after their respective conventions;[12][13][14][15] however, the RealClearPolitics polling index showed both candidates trending upward leading up to and after their acceptance speeches.

Ronald Reagan addresses the 1980 GOP convention . Reagan saw a big boost in the polls after his acceptance speech, but his opponent, President Jimmy Carter , got an equally large bump after his convention four weeks later.