Breaking new this morning. After much speculation, Governor Deval Patrick has named William 'Mo' Cowan the interim senator to take John Kerry's seat.

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Cowan is the former chief of staff and legal aide to Governor Deval Patrick. This pick will bring a relatively unknown into the spotlight. Cowan left his spot at the Governor's side in 2012 for a private sector.

Governor Patrick is set to make the official announcement at 11 am Wednesday morning. Patrick says that Cowan is 'hardly a stranger to sharp elbows'.