Representative Earl Blumenauer (D., OR) has introduced the No Taxpayer Revenue Used to Monetize the Presidency (No TRUMP) Act. The USA Today reports that the bill would "prohibit the use of taxpayer dollars to pay for events, overnight stays, food or other expenses at hotels owned or operated by a president or his relatives."
According to the press release (see below), the measure "is an important check on the office of the presidency. It would ensure that there is no personal financial incentive by the current or any future president or his/her family to stay or hold official meetings or events at certain properties across the United States or abroad. In the interest of safety, the bill would allow the Secret Service to continue guarding Trump residences – Trump Towers in New York and Mar-a-Lago in Palm Beach."