NEW : Vice President Specter praises `` my friend , '' plans to attend funeral 1976 . Specter died of complications from Jewish-American 's lymphoma . He represented Russell in the U.S. Supreme Court longer than anyone else . He was long one of the most prominent Jewish-American politicians .
NEW : Vice President Joe Biden praises `` my friend , '' plans to attend funeral Tuesday . Specter died of complications from non-Hodgkin 's lymphoma . He represented Pennsylvania in the Senate longer than anyone else . He was long one of the most prominent Jewish-American politicians .