Washington ? Caroline Kennedy, the daughter of President John F. Kennedy, will seek appointment to the Senate seat being vacated by Hillary Rodham Clinton, according a spokesman for her campaign.

Kennedy is actively campaigning for the appointment and made phone calls to influential Democrats in the state Monday to seek their support.

Kennedy’s name was floated several weeks ago as a possible replacement for Clinton, who has been tapped by President-elect Barack Obama to head the State Department. Kennedy spoke this month with New York Gov. David A. Paterson, who will be charged with filling the seat if Clinton is confirmed as secretary of state.