Over 1,700 people attended a packed-house rally in a former waterfront warehouse in Portland, Maine on Monday as Sen. Bernie Sanders championed the working-class populist candidacies of Graham Platner for US Senate and Troy Jackson for governor in front of a crowd that never missed a chance to boo and rail against Republican Sen. Susan Collins—and the billionaire class that has benefited most from her nearly 30-year career in Washington, DC.