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- The NATO summit is being held in Washington, DC, this week.
- It comes amid rising global conflict and turmoil.
- But questions about President Joe Biden's political future will overshadow the meeting.
NATO leaders are gathering in Washington, D.C., this week amid global conflict and rising tensions from Ukraine to the Taiwan Strait.
But it's the political future of the alliance's most powerful member, the US, that will be among the core focus of discussions.