President Donald Trump is headed to Pennsylvania 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 leading 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 his path to victory, Pennsylvania voters have shown a growing opposition to the drilling and massive pipelines. National polling shows the growing skepticism of fracking, the process used in extraction. On Wednesday, Trump will speak to a conference in Pittsburgh, a corporate hub of activity in the Marcellus Shale, the nation’s most prolific natural gas reservoir.