To gauge his influence, you need only listen to one of Clinton’s campaign speeches. On issues like inequality, trade, the environment, corporate offshoring, and bringing Wall Street miscreants to justice, the former Secretary of State has adopted Sanders’s language—and, in some cases, his policies. Clinton had undoubtedly always intended to run as a center-left progressive in 2016, just as she did in 2008, but Sanders has forced her onto ground she hadn’t originally intended to occupy.
It isn’t just Clinton, either. Even Republicans have been taking up some of Sanders’s themes. “The top one per cent under President Obama, the millionaires and billionaires that he constantly demagogued, earned a higher share for our national income than any year since 1928,” Ted Cruz said earlier this year. Donald Trump has talked about the need to raise taxes on hedge-fund managers and leveraged-buyout tycoons. John Kasich has rebranded himself as a champion for the poor and excluded. Of course, the regressive tax policies that Cruz, Trump, and Kasich are advocating would exacerbate inequality, rather than reduce it, but the fact that Republicans have felt obliged to address these issues at all surely owes something to Sanders and the populist wave that he represents.