This week Wyoming Public TV is hosting debates for all the statewide races. All ballot-listed candidates are included in all debates, except that the Democratic nominee for U.S. House was apparently excluded. He is Richard Grayson, who lives in Arizona sometimes, and New York city other times, and who reportedly has never set foot in Wyoming. See this story about the debates, which include the nominees of the Republican, Democratic, Libertarian, and Constitution Parties, and one independent candidate.
Wyoming is in the 10th circuit, which ruled in 2000 that states cannot enforce residency requirements on candidates for Congress.
They invited him, but the debate conflicted with another TV show (“Dancing With the Stars”) so he turned down the invitation.