Vice President Al Gore stepped up the battle to save the nomination ofDr. Henry Fosterin the face of increasing GOP calls for the physician to withdraw. In Nashville, Tenn., Gore labeled Foster's opponents "extremists" who were out to nix his appointment as part of their anti-abortion agenda. "There are people in this country who want to criminalize a woman's right to choose and they are now trying to make Dr. Foster a victim . . . in order to make an ideological, political point," Gore said. Foster's GOP opponents aren't about to give up, however. House Speaker Newt Gingrich told the Associated Press that Foster's hearings would be "very embarrassing."