Jared Kushner is US President Donald Trump's son-in-law - and also one of his key confidants. Here's a closer look at the man.

ANALYSIS: A major Chinese financial services firm may invest $5.78 billion (US$4b) in a Manhattan skyscraper owned by the family of President Donald Trump's son-in-law, Jared Kushner.

And Kushner's family stands to take home about $720 million for itself from the transaction.

All sorts of goodies are sprinkled around this potential deal, which is being circulated to attract additional investment. It would be the biggest investment - ever - in a single Manhattan building.

REUTERS There's nothing to see here. Just move along. That's what the Trump White House wants you to think.

Some of the Kushner family's debt on the property would get erased for about a fifth of its value.

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JONATHAN ERNST/REUTERS Ivanka Trump with husband Jared Kushner.

The Kushners would become equity partners with the Chinese firm, Anbang Insurance Group.

Best of all for the Kushners, the deal would rescue the family company from the consequences of overpaying for the building, 666 Fifth Avenue, which it purchased in 2007 for $2.6 billion.

It would also buy out another prominent Trump political backer who invested in the building, Steve Roth of Vornado Realty, for 10 times his original investment.

DANIEL ACKER/BLOOMBERG A transaction between a company owned by the family of Jared Kushner and a Chinese company investing in their marquee Manhattan office tower includes terms that some experts consider unusually favorable for the Kushners.

"It would make business partners of Kushner and Anbang, whose murky links to the Chinese power structure have raised national security concerns over its US investments," Bloomberg reporters David Kocieniewski and Caleb Melby wrote in breaking the story.

That observation is made all the more pungent by the fact Trump and China's president, Xi Jinping, have been discussing the terms of a possible diplomatic summit meeting that may take place as early as next month.

Jared Kushner, whom the Kushner family claims had already sold his stake in 666 Fifth Avenue to them (though it's not clear when), is a senior White House adviser whose purview has included foreign policy.

The New York Times reported in January that Kushner spearheaded the talks with Anbang about an investment in his family's business, that he met over dinner with Anbang's chairman, Wu Xiaohui, to discuss the transaction about a week after his father-in-law was elected president, and that the talks had begun last July or so when Trump had already locked up the Republican nomination.

"A classic way you influence people is by financially helping their family," one public interest advocate told the Bloomberg reporters about the Anbang deal.

Well, d'oh! Of course that's how it works.

And therein lies a problem: If we've learned anything about Trump in the chaotic seven weeks since he assumed the presidency, it's that his entire clan will test our capacity for surprise, distaste and even outrage when it comes to financial conflicts of interest.

After all, the Trump presidency is still in its infancy and the sheer volume of flagrant conflicts that have already emerged may induce "scandal fatigue" in anyone who values - in the most nonpartisan and most non-ideological of ways - ethics and good government.

That's even truer when good-government advocates are confronted with a Republican-controlled Congress that is largely content to sit on its hands when the Trump family's financial conflicts come spilling into view.

The Trumps have responded to these moments by reminding everyone that we should just trust them, even when they thumb their noses at White House traditions meant to ensure that the Oval Office doesn't become a place where public policy and private deal-making mingle.

TRUMP TRADEMARKS AND THE CONSTITUTION

Kushner's Anbang deal comes on the heels of news that Trump's company recently received dozens of trademark approvals from the Chinese government after unsuccessfully lobbying for the same trademarks for about a decade.

It's unclear whether the trademarks were granted in exchange for Trump's public recognition of China's sovereignty over Taiwan.

But given that Trump hasn't truly parted ways with the Trump Organisation, released his tax returns or fully disclosed his assets, there will always be a presumption that he's getting preferential treatment from foreign governments courting his favour.

Bloomberg columnist Adam Minter thinks the Chinese government didn't grant the trademarks to try to bribe Trump but rather to protect him and itself from fallout associated with brand-poaching of the Trump name in China - something Chinese officials probably weren't concerned about until he became president.

But regardless of what the Chinese government's perspective is, the granting of the trademarks amounted to a plus for Trump's business.

In the eyes of some legal experts, the simple fact that Trump accepted the trademarks is a violation of the Constitution's mandate against presidents accepting payments of any kind from foreign governments.

"If the trademark has value in contributing to Trump's wealth, the amount of the forbidden emolument might not be ascertainable before the transaction closes, but the constitutional prohibition doesn't turn on how large the emolument turns out to be," Laurence Tribe, a constitutional law professor at Harvard Law School, wrote in an email.

"It's the principle of the thing, not the size of the principal, that counts."

Meanwhile, Xi is expected to be feted at Mar-a-Lago, Trump's Florida golf club, if he travels to the US for a summit meeting, a treat Japan's prime minister, Shinzo Abe, also got to enjoy (even when Trump seemed to be using Abe as a marketing tool for resort memberships).

Amid all of this, the Trumps hardly bother to conceal their conflation of policy-making and profit-seeking - thus far without suffering any political or legal consequences.

Maybe they're relying on public scandal fatigue. This is the Trump White House, Trump and his children seem to be saying. There's nothing to see here. Just move along.

So let's not, shall we?

- O'Brien is the executive editor of Bloomberg Gadfly and Bloomberg View. He has been an editor and writer for the New York Times, the Wall Street Journal, HuffPost and Talk magazine. His books include "TrumpNation: The Art of Being The Donald."