Every single commentator and alleged political analyst I’ve seen missed the most important point of the June 27 Democratic Party debate, this one involving Kamala Harris, the media’s newest point of fascination.

Not the “that little girl was me” line Harris invoked as her own experience with school busing. It came three sentences earlier, in her same remarks to Joseph Biden. It could help unwrap the entire mystery of what a President Harris would represent - if she would only expand on it so we know if it’s true.

“I agree with you when you commit yourself to the importance of finding common ground,” the California senator told Biden, just after she assured him she did not consider him a racist - and fleet seconds before her now famous “little girl” remark.

Whoa. Stop the tape. For as Harris helps lead the Democratic Party’s left-hand turn and Biden says they won’t beat Donald Trump that way, is she saying Biden’s own brand of centrism could be her own?

That runs counter to the entire image that has vaulted Harris to prominence. Of all the candidates elbowing to take control of the left, the most prominent are Bernie Sanders, Elizabeth Warren and Harris, all of whom speak as if the time for mollifying Republicans is over.

Yet you wonder. Some senators in both parties have said Warren is actually someone you can do business with, on some issues at least. Now Harris is taking Biden’s entire campaign pitch - can’t we all be friends? - and offhandedly saying yes, there’s much to be said for that.

If she means it, she’s saying the 2020 choice is not necessarily Trump vs. Socialism Unleashed. For millions of Americans and especially Democrats and independents who will likely determine this election, voting against Trump would be easy - as long as the alternative is not a full-blown left-wing political coup.

The way Harris tossed her comment out there, and the way the national media overlooked it in favor of the little-girl “gotcha” moment, leaves us hanging on Harris. It also leaves us wondering if the national media learned anything from its clumsy performance in 2016.

Now that Harris is a star, she’s finding out how difficult it is to negotiate the spotlight. On Thursday, Harris and Sanders were the only candidates to raise their hands after being asked if they would outlaw private health insurance in favor of a government single-payer plan.

Hours later, she was changing her tune and said she misunderstood the question, which all the candidates knew was coming and which had been posed in Wednesday’s first debate.

Let’s be fair: it’s indeed possible to misunderstand in this situation, when only a show of hands about a complicated topic is requested. But did Harris misunderstand the question or miscalculate the potential response to a stance polls find too extreme?

Health insurance will not be solved in sound-byte time, unless you’re Sanders, for whom “rich people and big companies are evil” is used as an adequate answer for everything. Americans want to know if Harris and the rest are asking them to trust government to take over the entire health insurance industry - that’s socialism, folks - and several contenders are struggling to make nuanced arguments in ways that still make the solution sound simple.

Harris is also getting praise, criticism and a new revenue stream for selling $30 T-shirts with her “little girl” picture on them. I have no problem with it. Meet Kamala Harris, savvy capitalist.

Poor Joe Biden, meanwhile, is sinking in the quicksand of his own words and responses. Conservatives are correct to ask why Biden’s long list of remarks and legislative actions, which place him in a much less glowing light of civil rights activism than he describes, was all but ignored in 2008. That’s when Barack Obama chose him to sit one seat away from the presidency.

The conspiracy theorists say it was media’s way of covering for Obama, their darling. Recalling how Sarah Palin was appropriately but savagely torched that year, I can’t dismiss that theory but I put more blame on Biden, whose warm reflections on working with segregationists Herman Talmadge and James Eastland opened this bottomless Pandora’s Box out of his own mouth.

I’m also a bit weary of Biden bragging about working “across the aisle.” Biden, Talmadge and Eastland were all Democrats. They were separated by seat cushions, not aisles.

What I yearn to hear most of all as a voter, though, is whether Harris is comfortable with finding “common ground,” and thus offers a true alternative to Biden, who has staked his campaign on it. On what issues could a Harris Administration work with both Democrats and Republicans, especially considering how fundamentally opposed the GOP remains to almost everything she has said she stands for?

Millions of voters would consider voting Democratic if they didn’t think they were only trading a dislikable pawn of the right wing for a left-wing extremist who would give away the farm. A 15-word phrase, tossed by Harris as a bouquet to Biden before punching him in the face, does little to convince me that we wouldn’t still be buying a non-compromising ideologue who is too far to the left for me.

But a long campaign is supposed to let us learn more about these people, so I’m intrigued. Common ground does not mean capitulation of principle, it means reason and judgment. If Harris is saying that’s Biden’s strength - and she is saying that - I’d like to hear more about whether we can actually believe it would also be hers.