Maine Governor Janet Mills now supports increasing taxes on the state’s richest residents, reversing her past opposition after lagging in recent polls for a key Democratic Senate primary. Mills on Thursday endorsed a millionaire tax included in a budget proposal that passed a committee for the Democrat-controlled legislature. She vetoed a similar increase in 2024 and maintained that such a measure was short-sighted in an interview just a few weeks ago. Mills’ flip-flop comes as the 78-year-old trails political newcomer Graham Platner in their contest to be the Democratic nominee to take on Republican Susan Collins in November. Platner, a...