Lawmakers subpoenaed Deutsche Bank and other financial institutions on Monday as they chase down President Trump’s finances and personal information.

The Democrat-led House Intelligence and Financial Services committees that the sent subpoenas are examining Trump’s relationship with Deutsche Bank, which has lent Trump more than $2 billion over the years.

Investigators seek documents on the business the banks conducted with a series of suspected Russian and other Eastern European money launderers, sources told the New York Times.

A spokesperson for the Deutsche Bank, Kerrie McHugh, acknowledged the bank was “engaged in productive dialogue” with the congressional panels.

“We remain committed to providing appropriate information to all authorized investigations in a manner consistent with our legal obligations,” McHugh said.

Among the other lenders to receive subpoenas were Citigroup, JPMorgan Chase, and Bank of America.

The White House did not immediately respond to a request for comment from the New York Times, nor did the Trump Organization.