allow them to impose tariffs and increase russia's economic isolation and retaliation for the invasion. it comes days after the president moved to ban imports of russian oil and gas products. moments ago, vice president kamala harris left warsaw, poland for bucharest, the capital of romania. part of her effort to demonstrate american support for nato allies, particularly those in eastern europe with ukraine. she is set to meet with romanian's president to advance coordination in response to russia's war here and to offer support as romania is now welcoming thousands of refugees that are fleeing this russian invasion. we find cnn's kevin liptak in bucharest with vice president harris. the vice president visiting these countries making clear, as she has said repeatedly, that