Biden's statement comes as his administration works to send as much aid to Ukraine as possible before Trump, who has vowed to end the war, assumes office.

President Biden on Wednesday denounced Russia's large-scale Christmas Day attacks on Ukraine that damaged critical energy infrastructure and vowed to continue a U.S. surge in weapons deliveries" to Kyiv.

President Biden on Wednesday denounced Russia’s latest attack on Ukraine, declaring the wave of missiles and drones “outrageous.” “The purpose of this outrageous attack was to cut off the Ukrainian people’s access to heat and electricity during winter and to jeopardize the safety of its grid,