WASHINGTON — Federal workers are some of the hardest hit by the partial government shutdown, but those who depend on their business, including rideshare drivers, are also feeling the impact. Luke Cho, a student at George Mason University majoring in Russian Studies, is an Uber driver in Fairfax County. Driving for Uber during the evening rush has helped Cho pay the bills. “Before the shutdown, we were seeing high demand all across the District,” said Cho. But lately, he’s been feeling the impact of the shutdown. “The riders just started disappearing and the calls just stopped coming,” said Cho. Instead...