I co-wrote this article with Constance Hale for Fortune.com.
As the national conversation intensifies about Joe Biden’s vice presidential selection, and as the Democratic nominee crafts his short list, we take in the news with a certain dismay. Most pundits rely on a narrow political lens: This candidate would bring this state; that candidate boasts foreign policy experience; another would appeal to law and order types, or veterans, or African-Americans, or Catholics. Those who look beyond the polls to the task of governing may look for a synergistic connection between a presidential contender and a running mate.