GOP ad buyer mixes up Portlands, spends money meant to help Maine Sen. Susan Collins in Oregon  NBC NewsVoters in Portland (Oregon) get ads meant for Portland (Maine)  The Washington PostA GOP PAC ran an ad opposing Maine Democrat Troy Jackson — in the wrong Portland  MS NOWWhich Portland? GOP ad buyer chooses wrong state for Senate campaign  USA TodayWhoops! GOP blows money airing attack ads in the wrong state.  Daily Kos