Among South Carolina Republicans who preferred above all else a candidate “who tells it like it is,†77 percent voted for Donald J. Trump. That is astonishing, given that Donald Trump’s entire life has been an extended exercise in deception. Start with his wealth. How much is Donald Trump worth? $1.7 billion? $6 billion? “TEN BILLION DOLLARS,†as he claimed in his presidential filing? Tim O’Brien, then a reporter for the New York Times, wrote in his book TrumpNation: The Art of Being the Donald, that in one 24-hour period, Trump claimed two different net worths differing by $3.3 billion....