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Republican presidential hopeful Chris Christie on Monday waded into the emotional subject of childhood vaccinations. Why did he do that? That鈥檚 not a big partisan issue in United States politics 鈥� at least, not yet.

First, the background: New Jersey Gov. Christie toured a biomedical research facility in Cambridge, England, as part of a three-day trade mission to the United Kingdom. The facility makes a nasal flu vaccine for a US-based company.

In remarks afterward, Governor Christie struck what he might have thought was a balanced note on vaccinations. First, he noted that he and his wife had vaccinated their own four children. That鈥檚 鈥渢he best expression I can give you of my opinion,鈥� he said.

So he鈥檚 pro-shot? Well, not exactly. He implied that Washington should refrain from requiring vaccinations as a matter of law.

鈥淚 also understand that parents need to have some measure of choice in things as well. So that鈥檚 the balance that the government has to decide,鈥� he added.

States set the childhood vaccination regimen within their boundaries. Right now, all 50 require certain vaccinations for kids to enroll in schools.

But there鈥檚 also a measure of parental control in some parts of the country. Twenty states allow parents to opt their children out of the vaccination requirement if they sign a personal or religious belief waiver. This includes California, where some 100 youngsters have been diagnosed with measles in recent weeks.

So, in one sense, Christie was just endorsing the current regimen, perhaps. As a Republican he鈥檚 going to stress personal responsibility and deemphasize a role for what he鈥檇 probably label a federal nanny state.

鈥淲hat (I think) Christie was trying to do was be aware that people don鈥檛, generally, like being told what to do with their children,鈥� writes Chris Cillizza of .

The problem is that the California situation has heightened the vaccine debate. Scientists are accusing a small group of anti-vaccination activists of endangering the larger cohort of children.

These anti-vaccination proponents are often caricatured as wealthy granola types who don鈥檛 want anything that鈥檚 not organic in their homes. The reality is that they are widely spread across religious, political and ideological demographics. It is not as if Christie is raising an issue that would obviously benefit him with, say, conservatives in GOP primaries.

On the national level, left-wing and right-wing influences on anti-vaccination believers are basically a 鈥渨ash,鈥� .

And Christie鈥檚 statement does not reflect the opinion of the larger US population. Sixty-eight percent of US adults say parents should be required to vaccinate their children, . This number is broadly stable among most subgroups, with the exception of age. Adults under 50 are slightly more likely to say parents should be able to decide this issue, according to Pew data.

The bottom line: Christie has pleased few and irritated many with his statement, which isn鈥檛 good political practice. Perhaps someone told him that 鈥渃hoice鈥� in vaccinations might be a good stance to take, given that 鈥渃hoice鈥� in education and health care is a conservative rallying cry, writes Noah Rothman at the right-leaning "Hot Air."

鈥淎ll of this suggests that Christie is getting some bad advice from a communications consultant who thinks the Garden State governor can be all things to everyone,鈥� .

Christie鈥檚 office has since issued from earlier Monday in England.

鈥淭o be clear: The governor believes vaccines are an important public health protection and with diseases like measles there is no question kids should be vaccinated. At the same time different states require different degrees of vaccination, which is why he was calling for balance in which ones government should mandate,鈥� reads the statement.