"Given these escalating attacks, the time has come to ease restrictions on Ukrainian’s use of U.S.-provided weapons. Greater flexibility to target Russian military assets will degrade Moscow’s ability to harm the Ukrainian people. The United States must act swiftly to grant these permissions.”
U.S. Senator Ben Cardin (D-Md.) Chair of the Senate Foreign Relations Committee

House and the Senate leaders have made it clear to the admin: do away with the restrictions. President Biden does not have a lot of room.