Our cover story this week describes how, regardless of what happens in America’s election next month, Donald Trump’s ideas will win. Kamala Harris has quietly adopted many of the policies that Mr Trump espoused when he was president. On trade, she would keep, in modified form, most of the tariffs from Mr Trump’s first term. On immigration, she has grown harsher, endorsing the most conservative bipartisan reform proposal this century. On energy, she has dropped her previous opposition to fracking. On China, she has been part of an administration that talked more diplomatically than Mr Trump, but was tougher in practice.