For Democratic strategist Julie Roginsky, a person with a Nazi tattoo on their chest should be disqualified as a candidate for political office. But that tattoo, along with a series of other controversies that have dogged Senate candidate Graham Platner, has not been enough to dissuade most Democratic voters in Maine from supporting him. On Tuesday, Platner, a 41-year-old oyster farmer and military veteran, won a decisive victory in the Maine Democratic primary for U.S. Senate. He will now face longtime Republican Sen. Susan Collins in this November's midterm elections. For many Democrats, the removal of Collins is the central...