Despite massive federal spending on electric vehicles, which is expected to total $7.9 billion through 2019, there are currently just 286,390 plug-in vehicles on the nation’s roads today, according to the Electric Drive Transportation Association (EDTA). That’s 72 percent lower than the million electric vehicles the president predicted four years ago. And with gasoline prices now averaging $2.06 per gallon, the lowest they’ve been since April 2009, that percentage is not likely to change any time soon.