Democratic senator Mark Pryor did not own a home in Arkansas, the state he represents in Washington, during his first four years in the U.S. Senate. And now it appears he lives part-time at the Washington, D.C. home of his brother, a top lobbyist for Microsoft.

Pryor’s Republican opponent, Congressman Tom Cotton, has come under fire recently for not owning property in the state. The recently married Cotton lives in a house, owned by his family, in Dardanelle, not far from the farm where he grew up and where his parents currently live. Janine Parry, the director of the Arkansas Poll and a professor at the University of Arkansas, told McClatchy News Service that Cotton’s residency was “something the Pryor people are positioned to take advantage of.”