Major Wall Street banks have given congressional committees investigating President Trump thousands of pages of documents related to Russians who may have had dealings with Trump, his family or his business, people familiar with the congressional probes said. Some banks are also giving documents related to Trump’s business, the Trump Organization, to New York state investigators, people familiar with the New York investigation said.

Wall Street firms including Bank of America Corp. BAC, +0.64% , Citigroup Inc. C, -0.40% , Deutsche Bank AG DB, -1.35% JPMorgan Chase & Co. JPM, +0.87% , Morgan Stanley MS, +0.92% and Wells Fargo & Co. WFC, +1.37% have recently provided thousands of financial documents related to Russians who may have had dealings with Trump or his family or his business to congressional investigators, according to people familiar with the congressional probes. The investigators are working on a joint probe into potential foreign influence on Trump and his family by the House Financial Services Committee and the House Intelligence Committee. More information will likely be handed over in coming weeks as the banks continue to respond to subpoenas sent in April, the people said.

Separately, Deutsche Bank, Trump’s primary bank, has turned over emails, loan agreements and other documents related to the Trump Organization to the office of New York Attorney General Letitia James, in response to a civil subpoena sent earlier this year, according to people familiar with the New York investigation.

An expanded version of this story is available at WSJ.com.

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