Whispers of money laundering have swirled around Donald Trump’s businesses for years. One of his casinos, for example, was fined $10 million for not trying hard enough to prevent such machinations. Investors with shady financial histories sometimes popped up in his foreign ventures. And on Sunday, The New York Times reported that anti-money-laundering specialists at Deutsche Bank internally flagged multiple transactions by Trump companies as suspicious. (A spokesperson for the Trump Organization called the article “absolute nonsense.”) The remarkably troubled recent history of Deutsche Bank, its past money-laundering woes — and the bank’s striking relationship with Trump — are the subjects of this week’s episode. The German bank loaned a cumulative total of around $2.5 billion to Trump projects over the past two decades, and the bank continued writing him nine-figure checks even after he defaulted on a $640 million obligation and sued the bank, blaming it for his failure to pay back the debt. Trump, Inc. isn’t the only one examining the president’s relationship with the bank. Congressional investigators have gone to court seeking the kind of detailed — and usually secret — banking records that could reveal potential misdeeds related to the president’s businesses, according to recent filings by two congressional committees. The filings were made in response to a highly unusual move by lawyers for Trump, his family and his company seeking to quash congressional subpoenas issued to Deutsche Bank and Capital One, a second institution he banked with. Trump’s lawyers have contended that the congressional subpoenas “were issued to harass” Trump and damage him politically. Earlier today, a federal judge in New York declined to issue a preliminary injunction to block the subpoenas. During the hearing in which he delivered that ruling, U.S. District Judge Edgardo Ramos said Congress is within its rights to require the banks to turn over Trump’s financial information, even if the disclosure is harmful to him. For their part, the filings for the House Financial Services and Intelligence committees say they are “investigating serious and urgent questions concerning the safety of banking practices, money laundering in the financial sector, foreign influence in the U.S. political process, and the threat of foreign financial leverage, including over the President.” The inquiry includes investigating whether Trump’s accounts were involved in two large schemes involving Deutsche Bank and Russian clients. The committees want to determine “the volume of illicit funds that may have flowed through the bank, and whether any touched the accounts held there by Mr. Trump, his family, or business.” Links to Russia will get a particularly close look. “The Committee is examining whether Mr. Trump’s foreign business deals and financial ties were part of the Russian government’s efforts to entangle business and political leaders in corrupt activity or otherwise obtain leverage over them,” the filing stated. The episode explores some of the Trump-related moves by the bank: ➧ Deutsche Bank’s private wealth unit loaned Trump $48 million — after he had defaulted on his $640 million loan and the bank’s commercial unit didn’t want to lend him any further funds — so that Trump could pay back another unit of Deutsche Bank. “No one has ever seen anything like it,” said David Enrich, finance editor of The New York Times, who is writing a book about the bank and spoke to Trump, Inc. ➧ Deutsche Bank loaned Trump’s company $125 million as part of the overall $150 million purchase of the ailing Doral golf resort in Miami in 2012. The loans’ primary collateral was land and buildings that he paid only $105 million for, county land records show. The apparent favorable terms raise questions