MCCONNELL LAPSE AND BIDEN STUMBLE HIGHLIGHT ADVANCED AGE OF US LEADERS

Senate Republican leader Mitch McConnell's unexplained freezeup while speaking in Congress this week is the latest reminder that America's most powerful political leaders are much older than many in other democracies. Joe Biden, 80, is the oldest U.S. president to ever serve in the White House, and nearly two decades older than the median age of the world's national leaders, 62, Pew Research found.

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