GOP ad buyer mixes up Portlands, spends money meant to help Maine Sen. Susan Collins in Oregon  NBC NewsA GOP PAC ran an ad opposing Maine Democrat Troy Jackson — in the wrong Portland  MS NOWGOP buyer’s blunder sends Susan Collins ad money to wrong Portland  NBC BostonA GOP ad calls Troy Jackson ‘corrupt’ over a college funding bill. Here’s what the record shows  WMTWNew Ad: Troy Jackson Will Eliminate Union-Negotiated Health Insurance  Senate Leadership Fund