THE TIGHTENING NOOSE:

In the weeks before Ms. Vrablic attended his swearing-in, the bank commissioned reports to figure out how it had gotten in so deep with Mr. Trump. It issued an unusual edict to its Wall Street employees: Do not publicly utter the word "Trump."

More than two years later, Mr. Trump's financial ties with Deutsche Bank are the subject of investigations by two congressional committees and the New York attorney general. Investigators hope to use Deutsche Bank as a window into Mr. Trump's personal and business finances.

Deutsche Bank officials have quietly argued to regulators, lawmakers and journalists that Mr. Trump was not a priority for the bank or its senior leaders and that the lending was the work of a single, obscure division. But interviews with more than 20 current and former Deutsche Bank executives and board members, most of them with direct knowledge of the Trump relationship, contradict the bank's narrative.

Over nearly two decades, Deutsche Bank's leaders repeatedly saw red flags surrounding Mr. Trump. There was a disastrous bond sale, a promised loan that relied on a banker's forged signature, wild exaggerations of Mr. Trump's wealth, even a claim of an act of God.

But Deutsche Bank had a ravenous appetite for risk and limited concern about its clients' reputations. Time after time, with the support of two different chief executives, the bank handed money -- a total of well over $2 billion -- to a man whom nearly all other banks had deemed untouchable. [...]

Mr. Trump told Deutsche Bank his net worth was about $3 billion, but when bank employees reviewed his finances, they concluded he was worth about $788 million, according to documents produced during a lawsuit Mr. Trump brought against the former New York Times journalist Timothy O'Brien. And a senior investment-banking executive said in an interview that he and others cautioned that Mr. Trump should be avoided because he had worked with people in the construction industry connected to organized crime.

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