President Joe Biden will address the United Nations General Assembly on Tuesday to rally international support for Ukraine's effort to repel Russia's invasion. House Speaker Kevin McCarthy and House Democratic Leader Hakeem Jeffries will host a meeting with Ukrainian President Volodymyr Zelenskyy during his visit to the U.S. Capitol. Biden's speech is an important step in the international community's effort to address the ongoing conflict in Ukraine, and a repudiation of the "America First" approach taken by the previous administration.