5 things to know about Graham Platner ally poised to take on Susan Collins

Former Maine Senate President Troy Jackson is on a glide path to replace now ex-candidate Graham Platner as the Democratic Senate nominee in the high-stakes showdown to face off with longtime Republican Sen. Susan Collins. Delegates aligned with Jackson won the vast majority of the 500 slots that were up for grabs on Saturday and Sunday as Maine's 16 counties held two days of delegate selection for next weekend's state Democratic Party nominating convention. And Jackson's top rivals for the nomi