Sen. Marco Rubio (R-FL) said late Tuesday that he supports securing the United States border with Mexico with a double-tiered fence but voted against an amendment to the “Gang of Eight” immigration bill that would have required exactly that. Rubio and his fellow Gang of Eight Republicans helped the Democrats kill an amendment from Sen. John Thune (R-SD) that would have required the double-tiered fence be built, as current law requires, before amnesty was granted to America’s at least 11 million illegal immigrants. The only other Republican to vote against the amendment was Sen. Lisa Murkowski (R-AK). “I support Senator...