His race for Dufur public office was not going well. The voters in Dufur (DOO-fur), a small town in Oregon, were leaning to his opponent in overwhelming numbers – or at least as overwhelming as a town of 500 can muster.

That’s when he made the remark that changed everything. With his campaign in dire trouble, and his support dwindling, he began walking all over town, announcing to everyone within earshot, “Ask not what Dufur can do fer you … ask what you can do fer Dufur!” That was all.

It turned the election around (issues, shmissues) and he won in a landslide. A small one, of course.

Of course, the authenticity of the preceding story is highly dubious. After all, it was told to me by my dad, a man known for hyperbole – and that’s no exaggeration. But he claimed that it really did happen to a politician friend of his, and dad always told the story as an example of a “joke under pressure.”

In this presidential election year, there are a lot of candidate qualities we voters can observe: Knowledge of the issues, skill at debating, ability to kiss babies – even the homely ones – and more. But it’s also worth noting a candidate’s sense of humor and how willing and able they are to use it, especially on themselves.

The former TV talk-show host, Dick Cavett, who now writes an occasional blog for the New York Times, said that if he had been advising the Hillary campaign, he’d have recommended that she walk onstage at one of her recent appearances wearing a flak jacket. The sight gag may have effectively made fun of the flap that happened in the wake of her story about landing under sniper fire on a trip to Bosnia, and shown an ability to laugh at herself, too.

Cavett also thinks that just as surely as a president needs advisors of all kinds, he or she should also hire a comedy writer or two. Some people may not think much of the idea, but lots of unemployed comedy writers would probably support it.

But it’s especially impressive when a president, without the benefit of a writer, teleprompter or cue cards, can manage to toss off a witticism of his or her very own. Abraham Lincoln makes almost everyone’s list of the very best. He was funny, self-effacing – and, of course, had the stovepipe hat. He probably would have still been funny without it, but it didn’t hurt. Some experts think Dennis Kucinich could have gone all the way if he’d worn a beanie.

One time, when a debate opponent called Lincoln “two-faced,” Abe turned to the crowd and said, “If I had another face, do you think I would wear this one?”

There are some historians who think that a popular clown of the day named Dan Rice was a friend of Lincoln’s and might have been the source of many of the president’s jokes. But who wants to believe that? I’d rather think that it Lincoln himself came up with all his own stuff. How funny could a guy named Dan Rice be? Shecky Rice, maybe, but not Dan.

One time, Lincoln told one of his lazier generals to keep him informed of what exactly was going on in the field during the war. The general decided to send a sarcastic telegram to Lincoln: “We have just captured six cows. What should do with them?” Lincoln wrote him back: “Milk them.”

There is another story about a persistent office-seeker who came to Lincoln one day with some news: “Mr. President, the chief of customs has just died. Do you think I might be considered to take his place?” Lincoln looked at him and said, “It’s okay with me, if the undertaker doesn’t mind.”

That joke has a similar construction to the one from Ronald Reagan years ago when he was running for a second term as president. At the time, he was in his early 70s, and the question of his advancing age was becoming a potential issue. That’s when Reagan famously said, “I will not make age an issue in this campaign – and I will not exploit my opponent’s (Walter Mondale) youth and inexperience.”

John McCain, himself hearing murmurs about his age at present, ought to think about picking an opportunity of his own to say something like, “As a boy, I remember dreaming of becoming president some day like Abraham Lincoln. And I told him so one time.”

Of course, being witty is no guarantee of victory. Attesting to that is the 1996 Republican nominee for president, Bob Dole, arguably one of our funnier contemporary politicians. But Dole does point out, after all, that it’s our very own Declaration of Independence that gives laughter a solid third billing: “Life, liberty and the pursuit of happiness.”

I haven’t decided which candidate I’m voting for this year, but it definitely won’t be for a grump. Unless it’s one with a really solid tax plan.

Pat Cashman is a writer, actor and public speaker. He can be reached at pat@patcashman.com