Joe Biden's political career has spanned six decades. He's gone from one of the youngest senators — elected in 1972 — to the oldest president in US history. And during his half-century in elected office, his political views have changed.
As part of its "Red, White, and Gray" series, Insider scoured hours of Biden video — from TV interviews to debates to public speeches — to understand how his views on five critical issues have changed over time. Politicians' opinions are always evolving, especially when they're seeking a promotion from Congress to the White House. The contrasts seen below provide telling insight as Biden leads the country through issues such as abortion, the Afghanistan war, immigration, race, and crime. Scroll through this interactive story to learn more and see for yourself.