Many Republicans have tried and failed to win the presidential nomination without support from the party establishment. Donald Trump argues he is different from those hopefuls because his wealth enables him to fund an insurgent campaign all by himself. But for all the talk about his money, so far, Trump isn’t using it. Trump campaign officials say he has only spent about $2 million – far less than fellow GOP candidates Dr. Ben Carson and Sen. Ted Cruz, for instance. each spent $5.5 million just through July, according to the latest FEC reports. Hillary Clinton’s campaign, meanwhile, spent $18 million...
