This is part four of a series exploring the effects of President Joe Biden’s cancellation of the Keystone XL oil pipeline. PHILIP, S.D.—Entire towns and communities along the route of the Keystone XL pipeline—once lively and prosperous due to the economic opportunity it brought—have been left out of money and out of hope after the project was scrapped by President Joe Biden on his first day in office. One such town in rural South Dakota had invested heavily in their businesses in order to provide for an influx of workers the project had brought. Some businesses had even secured contracts with various companies working on the pipeline, but now have been left in deep debt and face a bleak future. Residents of Philip, a small town with less than 900 people, knew that the construction and extra business was temporary, but also knew that the revenue it was to generate would …