In a historic victory, Boston City Councilor Ayanna Pressley unseated Rep. Mike Capuano, a progressive Congressional favorite first elected in 1998 in Massachusetts' seventh congressional district. Capuano took the stage shortly after 9:15 p.m. and conceded the race. "I'm sorry it didn't work out, but this is life," Capuano told supporters. "This is OK. America is going to be OK. Ayanna Pressley is going to be a good congresswoman, and Massachusetts will be well served. "This is not the side we wanted to be on," he added. "Clearly the district wanted a lot of changes." Pressley, 44, mounted a surprising...