PHOTO: In this Oct. 2, 2002 file photo, Frank Lautenberg, center is flanked by Sen. Jon Corzine, D-N.J., left, and Gov. James McGreevey, in Trenton, N.J. Lautenberg died Monday, June 3, 2013 at age 89.
PHOTO: Sen. Frank Lautenberg, right, D-NJ, listens as New Jersey Gov. Chris Christie addresses a gathering in Lincoln Park, N.J., in this Aug. 31, 2011 photo.
PHOTO: Sen. Frank Lautenberg, D-N.J., smiles after the final votes before the Senate leaves for a five-week recess on Capitol Hill in Washington, Aug. 2, 2012.
PHOTO: Sen. Frank Lautenberg's retirement has paved the way for Newark Mayor Cory Booker to pursue his bid for U.S. Senate.
PHOTO: Frank Lautenberg's retirement opens the door for Corey Booker and Frank Pallone to compete for Lautenberg's seat.
PHOTO: Left, Newark, N.J., Mayor Cory Booker, Sept. 4, 2012, in Charlotte, N.C. Frank Lautenberg (D-NJ), right, presides over a hearing on Superstorm Sandy, Dec. 6, 2012, in Washington, D.C.
VIDEO: Newark mayor says he'll consult with New Jersey's current U.S. senator, Frank Lautenberg.
VIDEO: Sen. Frank Lautenberg, D-N.J., says he'll introduce laws to stop cyberbullying.