Would you hire President Obama as your financial adviser? Three years ago his administration invested more than $100 billion in taxpayer money to bail out General Motors. On Tuesday, the entire company, not just what the government owns, was worth less than $34 billion. By anyone’s definition, that investment is a glaring failure. Yet over the last few days the Obama campaign, in a $25 million marketing blitz, has flooded the airwaves with ads in battleground states, claiming the bailout should be counted a rousing success. Unfortunately, assertions that “all loans have been repaid to the federal government,” that the...