"I want to be crystal clear: The Treasury can move this money in an hour," said the California Democrat.
With the prospect of new subpoenas coming as soon as Friday, Trump’s official policy of deliberate non-cooperation could be tested quickly.
A recent court case points the way to affirming congressional subpoenas without moving to impeachment hearings.
The rejection of oversight is the latest and perhaps most high-profile example of the new normal in the Trump era.
Democrats have likened Trump to a king or dictator for refusing to comply with congressional oversight.
Congress needed the documents to provide oversight of tax evasion and revenue collection.
So far, he hasn't shown much interest in investigating Donald Trump's administration.
Why does the public have such a low opinion of Congress? Rep. Jason Chaffetz (R-Utah) offers a prime example.
The Farm Credit System was the first GSE to be established by the United States in 1916. Unlike Fannie and Freddie, the Farm Credit System can make direct loans to farmers, ranchers and others involved in agriculture.