GOP candidates joust over foreign policy, immigration

GREENVILLE, S.C. (AP) — Republican presidential candidates jousted over immigration and foreign policy in a raucous debate that was shaken by the death of Supreme Court Justice Antonin Scalia hours before they took the stage.
Scalia's death thrust the future of the high court into the center of a heated presidential campaign. In their debate Saturday night, the GOP candidates insisted that President Barack Obama step aside and let his successor nominate Scalia's replacement instead, a position the White House vigorously opposed.