Biden takes calculated political risk on Afghanistan withdrawal

A decade ago, Joe Biden found himself the odd man out, overruled by the generals who convinced then-President Barack Obama to increase the number of America's troops in Afghanistan.

Now president himself, Biden has not only unapologetically reaffirmed his plan to get troops out of the country after a record-breaking two decades, he has aggressively expedited their withdrawal.

His move makes good on a pledge he made to himself to end a war that he has long viewed as unwinnable. It also implicitly acknowledges the rapidly shifting politics around American military intervention abroad.

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