Every week, it seems, New Jersey governor Chris Christie’s name inches higher on the list of potential 2016 Republican presidential candidates.

As a result, unlike any public figure in recent memory, he is increasingly compelled to assure reporters and the general public that his weight does not impair his ability to lead.

Christie, by any measure, is obese. This has provided endless fodder for late-night talk show hosts — David Letterman has ridiculed him for years — and politicos who hope to use his weight against him.

Stereotypes masquerade as facts: Fat is undisciplined. Fat is lazy. Fat is bound for an early grave.

Fat makes for great TV, too, the theory goes, from sitcoms to cable news shows. So after Christie jokingly pulled out a doughnut on Letterman’s show earlier this week, former White House physician Connie Mariano diagnosed the governor from afar on CNN:

“I worry that he may have a heart attack,” she said. “He may have a stroke. It’s almost like a time bomb waiting to happen unless he addresses those issues before he runs for office.”

Mariano worked for three presidents and wrote memoirs about her time at the White House. Visit her website, however, and you’ll find a photo of her only with former President Bill Clinton and a quote from him extolling her book. Combine her on-air interview with her website and she comes off as unprofessional and partisan.

Christie’s response to Mariano was typically brusque: Unless she does what a doctor is supposed to do — examine the patient and record his family history — “she should shut up.”

Agreed.

The Centers for Disease Control and Prevention reports that more than one-third of Americans are obese. Still, fat jokes are a popular form of entertainment in this country. If you’re on Facebook, for example, you probably have seen the photos of morbidly obese customers at Walmart. The comment threads about the ample backsides of unsuspecting shoppers will make you lose faith in humanity, I swear.

Such cruelty can play out differently in politics, which brings us back to Christie. His approval ratings soared in the wake of Hurricane Sandy. Even those who hated him had to concede that he was there for the people of his state — so much so that he hugged the president and then fired back at those who dared to criticize him for his gratitude.

The flood lines receded, and the fat jokes returned, but Christie’s political opponents — Republicans and Democrats alike — are ill-advised to make his size a campaign issue. When it comes to the governor’s struggles with weight, millions of Americans are on his side. Don’t think for a minute that Christie doesn’t know that, too.

“If you talked to anybody who has struggled with their weight, what they would tell you is, ‘Every week, every month, every year, there’s a plan,'” Christie said Tuesday at a news conference in New Jersey. “The idea that somehow I don’t care about this — of course I care about it, and I’m making the best effort I can.”

Sounding like millions of other Americans, 50-year-old Christie acknowledged that dieting has been a regular part of his life for decades.

“Sometimes I’m successful, and other times I’m not,” he said. “And sometimes periods of great success are followed by periods of great failure.”

But I’m not a Christie fan, because of his version of America. He has consistently attempted to demonize public-school teachers and called their union leaders “political thugs.” When a woman asked him, during an interview on a local television show, whether it was fair for him to cut funding to public schools when his children attend private school, he smacked her down.

“None of your business,” he said. “I don’t ask you where you send your kids to school. Don’t bother me where I send mine.”

Christie opposes marriage equality for gay Americans and vetoed a bill last year that would have allowed it.

He is also anti-choice. He’s just fine with turning over control of a woman’s body to the government. He’s got an attitude problem with women, too. Responding to a female heckler at a Mitt Romney rally last year, he said, “You know, something may go down tonight, but it ain’t gonna be jobs, sweetheart.”

Those are just some of the reasons Christie should never be president. There are plenty more.

Enough with the speculation about Christie’s health.

It’s the weight of his politics that could threaten the well-being of Americans.

Connie Schultz is a Pulitzer Prize-winning columnist and an essayist for Parade magazine. She is the author of two books, including …and His Lovely Wife, which chronicled the successful race of her husband, Sherrod Brown, for the U.S. Senate. To find out more about Connie Schultz (con.schultz@yahoo.com) and read her past columns, please visit the Creators Syndicate Web page at www.creators.com.

Photo credit: AP/Mel Evans