Democrats are struggling with a growing mess in Maine
House Democrats' campaign arm and main super PAC are stopping short of saying they will pull out all the stops to hold onto Maine's lone swing district after failing to get their preferred nominee. Why it matters: This new headache comes as Democratic leaders were already grappling with the never-ending firestorm around Senate nominee Graham Platner . Driving the news: Maine State Auditor Matt Dunlap , a progressive, defeated centrist state Sen. Joe Baldacci in the Democratic primary for Maine'…


