You might have recently seen a political advertisement about Maine’s Senate race. That’s because the advertisement mistakenly played in Portland, Oregon, instead of Portland, Maine. The advertisement, paid for by Republican PAC Defending Main Street, decries “Taxin’ Troy Jackson,” the Democratic candidate facing off against Susan Collins. Sarah Chamberlain, president of the Republican Main Street Partnership, said she was “very unhappy” about the mix-up. “I’m really upset,” she said. “I cannot believe that this happened.”