Presumptive GOP presidential nominee Donald Trump has a large field of potential vice presidential running mates. It's probably a combination of those factors that have made this the dullest search for a vice president I can remember. The vice presidential game is always animated by this one key rule: Those who know aren't talking, and those who are talking don't know. Vice presidential picks are very closely held by a very small circle of people. After all, that's the nature of being president and vice president.

Source: Washington Post June 29, 2016 15:46 UTC