Good morning! For federal employees, it might be hard to imagine an upside to a wild day on Capitol Hill that began with House Republicans singing “Amazing Grace” and ended with warnings from Fitch credit rating agency that it was looking closely at downgrading the United States’ creditworthiness. But yesterday’s chaos could also presage an end to the partial government shutdown that began Oct. 1. The reason is simple: Any deal to reopen agencies is tied to raising the nation’s debt ceiling and lawmakers could make real headway on the latter front today. After the House GOP leadership was unable…