Assemblymember Roger Dickinson will formally announce today that he is running for the sixth district for the State Senate currently held by Senate President Pro Tem Darrell Steinberg, who is termed out. A lifelong Democrat, Roger Dickinson was elected to the Sacramento County Board of Supervisors in 1994 and the State Assembly in 2010. His Assembly District covers a large portion of the City of Sacramento and Northern Sacramento County. Steinberg is supporting Dickinson's candidacy.