Democratic Republican Year Convention Nominee Bounce % Convention Nominee Bounce % 2008* Aug. 25-28 Barack Obama 4 Sept. 1-4 John McCain 6 2004 July 26-29 John Kerry -1 Aug 30-Sep 2 George W. Bush 2 2000 Aug. 14-17 Al Gore 8 Jul 31-Aug 3 George W. Bush 8 1996 Aug. 26-29 Bill Clinton 5 Aug. 12-15 Bob Dole 3 1992 July 13-16 Bill Clinton 16 Aug. 17-20 George Bush 5 1988 July 18-21 Mike Dukakis 7 Aug. 15-18 George Bush 6 1984 July 16-19 Walter Mondale 9 Aug. 20-23 Ronald Reagan 4 1980 Aug. 11-14 Jimmy Carter 10 July 14-17 Ronald Reagan 8 1976 July 12-15 Jimmy Carter 9 Aug. 16-19 Gerald Ford 5 1972 July 10-13 George McGovern 0 Aug. 21-23 Richard Nixon 7 1968 Aug. 26-29 Hubert Humphrey 2 Aug. 5-8 Richard Nixon 5 1964 Aug. 24-27 Lyndon Johnson 3 July 13-16 Barry Goldwater 5   *2008: Determined by the APP by using poll ending on the Sunday   before the convention and poll ending on the Sunday after the convention   data compiled from the Gallup Poll

Citation: Gerhard Peters. "The Post-Convention Bounce in Voters' Preference." The American Presidency Project. Ed. John T. Woolley and Gerhard Peters. Santa Barbara, CA: University of California. 1999-2009. Available from the World Wide Web: http://www.presidency.ucsb.edu/data/convention_bounces.php.