Russia's President Vladimir Putin and China's President Xi Jinping attend an official welcoming ceremony.
SERGEI BOBYLYOV/Getty Images
- Joe Biden exited the presidential race, endorsing Kamala Harris as his successor.
- Analysts say leaders like Vladimir Putin and Xi Jinping could interpret it as a sign of US decline.
- Authoritarians are not used to giving up power like Biden did, albeit under pressure.
In a dramatic but increasingly expected turn of events, Joe...