Donald Trump’s patented phrase “we aren’t winning anymore” lies beneath the tidal wave of anti-establishment sentiment propelling his campaign and, to some considerable degree, that of Bernie Sanders, too. What’s winning is Washington, Wall Street and the bicoastal elites. But most of America’s vast flyover zone has been left behind. Thus, the bottom 90% of families have no more real net worth today than they had 30 years ago and earn lower real household incomes and wages than they did 25 years ago. Needless to say, the lack of good jobs lies at the bottom of the wealth and income drought on main street, and this week’s April jobs report provided still another reminder.