Voters don’t like Donald Trump very much: his approval rating has never been higher than 45%; it’s generally stuck in the low 40s; and it occasionally dips down into the 30s when he is letting his id run the show. The percentage of voters who strongly disapprove of him regularly tops the 50% mark. But Democrats, who have been known to surprise everyone by snatching defeat from the jaws of victory, could still easily lose this election for one major reason: economics.