The war in Ukraine has reached a critical point. Ukrainian President Volodymyr Zelensky hoped for victory in 2023, but a lagging counteroffensive put Ukraine’s ability to defend itself in doubt – and has raised questions about the U.S.’s role in the war. Read more:In January, Ukrainian President Volodymyr Zelensky told Ukranians that he expected 2023 to be a victorious year for the country. With support from the United States and other Western allies, Ukraine had planned a counteroffensive in the spring against Russian troops, which ultimately proved unsuccessful. The foundering counteroffensive has raised questions about Ukraine’s decision-making and America’s deep involvement in the military planning behind the counteroffensive. President Biden has asked Congress to authorize more aid for Ukraine, but he faces stiff resistance from some Republicans in Congress who have tied the aid to negotiations over U.S.-Mexico border policy changes. Missy Ryan, who covers diplomacy and national security for The Post, joins us to explain.