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Six days after Edward J. Markey was elected to the US Senate, five Democratic candidates are already running to replace him in the US House of Representatives.
Middlesex County Sheriff Peter J. Koutoujian of Waltham jumped in the race for the Fifth Congressional District with a video announcement on Monday morning. State Senator Karen Spilka of Ashland, who previously said she is running, kicked off her campaign with an event in Framingham on Monday evening.
There are three other declared Democratic contenders in the heavily Democratic and largely suburban district that runs from Revere to Lexington to Framingham to Holliston: state Representative Carl M. Sciortino of Medford, and state Senators Will Brownsberger of Belmont and Katherine Clark of Melrose.