CREW, which has been leading force in combating the administration on ethics-related issues, is additionally seeking access to Trump's taxes in the suit.
"It's clear from the government's response that they don't believe anyone can go to court to stop the president from systematically violating the constitution," CREW communications director Jordan Libowitz said in a statement. "We heartily disagree and look forward to our day in court."
Just prior to taking office, Trump announced he had turned over control of his businesses to his eldest sons, Eric and Donald Jr., in addition to a top Trump Organization official. The Trumps pledged to make no new deals outside of the US as a part of the agreement. But CREW, along with leading Democrats and ethicists, have called for Trump to either place his businesses into a blind trust or liquidate his assets.