FILE - In this Aug. 31, 2011 file photograph, Sen. Frank Lautenberg, right, D-N.J., listens as New Jersey Gov. Chris Christie addresses a gathering in Lincoln Park, N.J. Christie faces

 

              FILE -  In this Aug. 31, 2011 file photograph, Sen. Frank Lautenberg, right, D-N.J., listens as New Jersey Gov. Chris Christie addresses a gathering in Lincoln Park, N.J. Christie faces
FILE - In this Aug. 31, 2011 file photograph, Sen. Frank Lautenberg, right, D-N.J., listens as New Jersey Gov. Chris Christie addresses a gathering in Lincoln Park, N.J. Christie faces a significant decision on who should succeed the late Democratic Sen. Frank Lautenberg. For Christie, the choice carries major political implications for his re-election campaign and, perhaps, a future presidential run. Republicans and Democrats alike will be watching Christie’s next moves closely. But for the governor with an independent streak, there’s no telling what he will do. (AP Photo/Mel Evans, file)