U.S. President Joe Biden addressed world leaders at the United Nations for the final time on Tuesday, declaring that Russia's war in Ukraine has failed and that a diplomatic solution between Israel and Lebanon's Hezbollah was still possible.

With four months left in office, Biden stepped up to the green-marbled lectern at the U.N. General Assembly with wars in Ukraine, the Gaza Strip and Sudan still raging and likely to outlast his presidency, which ends in January.

Security is tight in New York City after the president's arrival. CBS News New York's Ali Bauman reports. This college football season is still devoid of major upsets, but some teams have played tougher schedules than others. With only 117 in MLB history, an immaculate inning is rarer than a no-hitter.

The president delivered his final talk to the United Nations on Tuesday after decades in foreign policy. The Israel-Lebanon conflict hung over his remarks.

President Biden delivered his final speech to the United Nations General Assembly today where he addressed multiple foreign conflicts. NBC News' Mike Memoli, Edward R. Murrow Press Fellow at the Council on Foreign Relations Elise Labott,

The president celebrated his defense of Ukraine and restoration of global alliances but warned that a world filled with crises looms outside.

This is one of Biden’s final opportunities to tout his foreign policy legacy on the world stage, but the focus is likely to be on an escalating conflict.

White House National Security Advisor Jake Sullivan joins Morning Joe to preview the president's United Nations General Assembly speech, one of Biden's final speeches on the world stage.