Candidate whisperer: The ex-bartender who's got the ear of the GOP's top contender The most enduring lesson that Karl Rove taught the American people during his term as George W. Bush's top adviser was to always find out who the candidate's brain is before you elect him or her. For instance, if voters had fully understood that the swaggering, brush-cutting cowboy they elected was under the total sway of a dumpy balding guy with glasses who dropped out of college and believed William McKinley was America's greatest president, they might have thought twice. Had voters been more attentive, they'd have...