Keith Ellison's political career began with controversy over his links to the Nation of Islam's Louis Farrakhan, connections that continues to dog him to the present day despite his repeated disavowals. But less commonly known is another radical association of Ellison's: a decade-long relationship with Marxist University of Minnesota professor and 1974 Communist Party gubernatorial candidate in Minnesota, Erwin Marquit. Marquit helped launch Ellison's national political career in 2006 using Marquit's political connections, anti-war associations, personal donations, and hosting at least four fundraisers over the years for Ellison in the Marquit home near Cedar Lake in the Bryn Mawr section...