Complex sentence: The seat's incumbent, Representative Rodney Frelinghuysen, comes from a long line of New Jersey politicians and has held his office for 22 years, serving throughout those years as a member of the House Committee on Appropriations and eventually as the committee chair.
Split into simpler sentences: The seat's incumbent, Representative Rodney Frelinghuysen, comes from a long line of New Jersey politicians and has held his office for 22 years. A member of the House Committee on Appropriations since his election, Frelinghuysen currently serves as the committee chair.