Schumer said the Biden administration had asked lawmakers to insert provisions into the aid bill to help it seize assets, liquidate them and send Ukraine the money.
The U.S. House of Representatives signaled its support for giving the administration more power to target oligarchs profiting from their association with Russian President Vladimir Putin when it approved non-binding legislation on Wednesday.
The $33 billion in funding for Ukraine, which lawmakers have said they want to approve quickly, would be used to provide weapons, ammunition and other military assistance, as well as direct economic and humanitarian aid to Ukraine.
(Reporting by Katharine Jackson; Editing by Tim Ahmann and Daniel Wallis)