Sarah George won the Democratic primary for Chittenden County State’s Attorney, fending off a challenge from a former colleague who sought to portray her progressive policies as a risk to public safety. George, who was appointed to the role in 2017 and has been reelected twice before, defeated Bram Kranichfeld, a New North End resident who serves as the top prosecutor in Franklin County. Kranichfeld called George to concede around 11:15 p.m., at…