Governor Deval Patrick has picked William “Mo” Cowan, his former chief of staff, to serve as the state’s interim US senator until the successor to John F. Kerry is chosen by the voters in a June 25 special election. William “Mo” Cowan, the new senator (Pat Greenhouse/Globe Staff)
“He has been a valued ally to me and our work on behalf of the people of the Commonwealth,” Patrick said at a news conference. “In every step, he has brought preparation, perspective, wisdom, sound judgment, and clarity of purpose.”
Cowan said he was “honored and humbled” to get the temporary post, which will make him the first African-American to represent Massachusetts in the Senate since Edward Brooke held the seat as a Republican from 1966 to 1978.