He just can’t get over the Hill.

Former Rep. Katie Hill’s legislative director and alleged lover Graham Kelly is sticking around Congress, despite little to do and few remaining responsibilities.

“He is just walking the hallways like a ghost,” a fellow House staffer who knows Kelly told The Post. “He’s got a smile on his face, but he looks tired.”

“He has very little to do. They might give some rudimentary tasks to accomplish, but I would say a drastically reduced work load,” the staffer added.