BRACE yourself for weeks of chatter about Mitt Romney’s running mate. Vice presidents matter, as we have been spookily reminded by the recent re-emergence of Dick Cheney on our TV screens. And Paul Ryan matters more than most. (See below.)
Tony Cenicola/The New York Times
But these days you don’t just elect a ticket of two; you elect a whole package. Presidents come with a cast of advisers, think tanks, lobbyists, legislators, donors and watchdogs. Some in the entourage end up in key jobs; others operate as a kind of shadow cabinet, vetting choices and enforcing doctrine.
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