EXTON, Pa. (AP) — President Donald Trump is headed to Pittsburgh today to show his support for the natural gas industry, making clear he sees his pro-industry policies as a boost to his chances of winning the battleground state. As some of his Democratic opponents call for a fracking ban, Trump has been eager to tout his support for a sector he says brings economic benefits and jobs. But in the suburbs that might be key to victory, Pennsylvania voters have shown a growing opposition to fracking.