Can we draw the following hypothesis from the context? 

Context:

Robert Cortez Scott (born April 30, 1947) is the U.S. Representative for Virginia 's 3 congressional district , serving since 1993. He is a member of the Democratic Party. The district takes in most of Richmond, all of Portsmouth, along with most of the black-majority areas of Norfolk, Hampton and Scott's home in Newport News. Scott is the current dean of the Virginia Congressional delegation.

Hypothesis: he works in the 3 congressional district  for many years
Yes