NATO Summit Puts Biden’s Fitness Under a Microscope

The White House once hoped the NATO summit that opens Tuesday would showcase President Biden’s leadership of the trans-Atlantic alliance and his differences with Donald Trump. Instead it has become a pivotal test of his fitness for a second term.

A solid performance during the three-day gathering of North Atlantic Treaty Organization leaders could help shore up his candidacy, reminding voters of his support for the 75-year-old military partnership that his predecessor regularly attacked. Another stumble like his debate against Trump last month could only intensify calls for the 81-year-old commander in chief to exit from the presidential race.