Deutsche Bank says that U.S. privacy laws prevent it from disclosing details about President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE’s finances and his potential ties to Russia.

Five House Financial Services Committee Democrats sent Deutsche’s chief executive officer, John Cryan, a letter in May seeking information on Trump’s past transactions. The committee asked for details on whether Russia’s government backed loans for Trump’s real estate business.

Deutsche responded Thursday, nearly a week past the deadline in the letter to the bank, saying it couldn't share the information due to privacy rules.

“We hope that you will understand Deutsche Bank’s need to respect the boundaries that Congress and the courts have set in an effort to protect confidential information,” lawyers for the bank from Akin Gump Strauss Hauer & Feld wrote in the message, according to Reuters.

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Rep. Maxine Waters Maxine Moore WatersPowell, Mnuchin stress limits of current emergency lending programs Pelosi: House will stay in session until agreement is reached on coronavirus relief Omar invokes father's death from coronavirus in reaction to Woodward book MORE (D-Calif.), a member of the committee, confirmed through a staff member that the lender did not give “substantive responses" to the committee's requests.

The letter had asked that the bank provide information "necessary to access the scope, findings and conclusions of your internal reviews.”

“Congress remains in the dark on whether loans Deutsche Bank made to President Trump were guaranteed by the Russian government, or were in any way connected to Russia,” the Democrats’ letter said.

The Financial Services panel has the power to subpoena the documents, but that move requires support from its GOP members.

Republicans are the majority on the committee, and no Republican signed last month’s letter to Deutsche.