PORTLAND, Maine - Todd Palin, husband of Republican vice presidential candidate Sarah Palin, is coming to Maine to campaign for John McCain. Palin will appear on Saturday will appear at a barbecue at the Moosehead Trail Trading Post in Palmyra on Saturday afternoon, according to the McCain campaign. Doors open at 2 p.m. Palin will appear at another barbecue at noon on Sunday at Harry’s Motor Sports in Presque Isle.