Convention bounce
（重定向自Convention bump）
![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.](/Images/godic/202501/06/Reagan_1980_GOP0324.jpg")
A convention bounce or convention bump refers to a surge of support that U.S. presidential candidates in the Republican or Democratic party typically enjoy after the televised national convention of their party. A presumptive nominee for president may also be said to experience a "VP bounce" after announcing his pick for vice president prior to the convention. The size and impact of convention bumps vary, but presidential candidates usually see at least a small uptick in their polling numbers coming out of their conventions.