Presidential History Unleashed--Fido to Fala, Millie to Bo "If you want a friend in Washington, get a dog," Harry Truman once said. Perhaps that's why, for much of our Republic's history, there have been two top dogs at 1600 Pennsylvania Avenue--one with two legs, one with four. First Dogs, by distinguished journalist Roy Rowan and researcher Brooke Janis, tells the whole doggone story, from the days before there was a White...