A group of Republican senators has written to top immigration officials in the Obama administration asking them to reveal whether large-scale plans are under way to provide a so-called non-legislative version of amnesty. The lawmakers cite an 11-page draft document written by staff to the director of the Citizenship and Immigration Service that says they are reviewing several executive orders and other mechanisms that effectively would serve as a substitute for comprehensive immigration reforms. The objective would be to promote “family unity, foster economic growth … and reduce the threat of removal for certain individuals present in the United States...