Did we miss any? The comments section awaits, and we may re-visit this if Fix readers come up with a bunch of good ideas.
As the GOP New Jersey Senate candidate conceded to Cory Booker in last month's special election, his wife lovingly rubbed his back to comfort him. After she did it for a while, he decided that was enough, and promptly brushed her hand aside. No word on whether he slept on the couch that night.
Lieberman, in his 2006 reelection campaign, lost the Democratic primary but, through a quirk in election law, was allowed to file as a third-party candidate under the newly created "Connecticut for Lieberman" party. Other states have laws that prevent such maneuvering, not coincidentally called "sore loser" laws.
Lieberman, of course, went on to retain his seat, so it's hard to call him a "loser" at all.
Of course, many Democrats still think they were robbed and that Gore was right to pursue the matter to the full extent of the law.
The Virginia lieutenant governor was none-too-happy that Cuccinelli decided to run for governor this year, believing it was his turn to grab the Republican nomination (after being leapfrogged by Bob McDonnell in 2009). And given the state party chose to nominate via convention rather than primary, the more moderate Bolling saw the writing on the wall.
Bolling said Cuccinelli had promised him he wouldn't run and had manipulated the state party's decision to use a convention. He also questioned Cuccinelli's electability, praised McAuliffe's work on a bipartisan transportation bill and publicly weighed an independent campaign that Republicans feared would torpedo Cuccinelli's changes in the general election. He eventually opted against it.
After Barack Obama won the South Carolina primary in 2008, former president Bill Clinton appeared to try and downplay the victory by noting that Jesse Jackson had carried the state twice in the 1980s. The comment was roundly criticized as racially insensitive and for being dismissive of Jackson.
After his embarrassing loss in this year's New York mayoral primary, the former congressman exited with a one-finger salute to photographers snapping pictures of him in his car exiting his election night party.
A candidate for chairman of a remote village in Maguindanao (Philippines) who was defeated in the barangay (village) elections last October 28 and his followers burned down a daycare center in their community on Monday night, the military said.
Captain Antonio Bulao, spokesperson of 602nd Brigade, said Maotan Dalimbang Kasim, who lost in his bid for the chairmanship of Barangay Nabundas in the Municipality of Datu Montawal, and his brother Tatoh led an undetermined number of followers in setting the center on fire.
Of course, Lugar wound up being on the right side of history on this, as Mourdock wound up bungling the race.
Update 11:54 a.m.: As longtime political reporter Walter Shapiro notes, this list somehow excluded Richard Nixon's "You won't have Nixon to kick around any more."
This egregious oversight needed to be corrected immediately, so we're appending video of it here.