According to The New York Times, Roberts, who is facing a primary challenge from tea party favorite Milton Wolf, uses the address of donors C. Duane and Phyllis Ross for voter registration and a place to sleep occasionally when he travels to the state.
"I have full access to the recliner," Roberts told the newspaper of the home in Dodge City, Kansas. "Nobody knows the state better than I do."
Roberts and his wife, a real estate broker, own a home in Alexandria, Virginia.
The Times report noted that Roberts' residency hasn't been lost on Kansas residents.
"He calls it home," retiree Jerald Miller said according to the Times. "But I've been here since '77, and I've only seen him twice."