Joseph Biden Jr. (born 1942) served as the 46th U.S. president from 2021 to 2025, capping a long career that included six Senate terms for Delaware and eight years as Barack Obama's vice president. His presidency featured major domestic wins like the American Rescue Plan, the Inflation Reduction Act, and a bipartisan infrastructure law, alongside the historic appointment of Supreme Court Justice Ketanji Brown Jackson. Abroad, he oversaw a chaotic military withdrawal from Afghanistan, led Western sanctions and aid against Russia's invasion of Ukraine, and provided strong support to Israel during the Gaza war while also sending humanitarian aid. At 80, he became the first president to turn 80 while in office, and after a poor debate performance fueled persistent age and health concerns, he made the historic decision to withdraw from the 2024 reelection race despite winning the Democratic primaries. Now the oldest living former president, his legacy is a mix of progressive achievements, bipartisan compromises, and turbulent global events.