Sen. Jon Kyl said yesterday that a Republican-led filibuster would be on the table to block immigration legislation supported by congressional Democrats and President Bush that grants citizenship rights to illegal aliens. "It would be in order," the Arizona Republican told radio host Laura Ingraham yesterday. "My only question is whether we've got the votes to do it." The comments highlight the deep divide between most congressional Republicans and the White House over an explosive political issue. And, coming from the No. 4 Republican in the chamber, the tough talk suggests the final two years of Mr. Bush's presidency could...