A Democratic member of the US House of Representatives has proposed legislation to bar the US government from renting rooms at President Donald Trump's hotels for official business.
In a statement, Representative Don Beyer of Virginia said "Donald Trump should not be allowed to line his or his family's pockets with taxpayer dollars".
He said the amendments he was introducing to a spending bill were necessary because of the Republican president's "unprecedented failure to divest from his business".
The White House did not immediately respond to a request for comment.
Last month, the attorneys general of Maryland and the District of Columbia filed a lawsuit alleging that government payments to Mr Trump's businesses violated the US Constitution.
