Newcrest chief executive Sandeep Biswas has just taken to following Donald Trump on Twitter. The reason why is simple enough – Newcrest is Australia’s biggest gold producer and Trump’s penchant for off-the-wall daily tweets is fuelling fear-buying of the yellow metal, pushing it to three months highs. Because gold was sold off heavily in the initial response to Trump’s election victory, the reversal is welcome news for the ASX gold sector where margins on an all-in sustaining cost basis for most are again pushing through the $A500 an ounce level, just as concerns about the sustainability of prices for the bulk commodities and base metals in response to growth concerns in China, and Trump’s isolationist tendencies, are clouding the outlook for the non-golds.