In May, Congress asked Deutsche Bank to share what it might know about Trump's real-estate business and whether the president had financial backing from Russia, Reuters reported. Deutsche Bank was given until June 2 to respond, but the German lender requested more time.
Public records show that Deutsche Bank loaned Trump millions of dollars for real-estate ventures.
The Democrats do not have the power to compel Deutsche Bank to comply, Reuters reported. The Financial Services Committee has subpoena power, but Republican committee members, who make up the majority of the panel, would have to cooperate.