Amendments threaten immigration deal POSTED: 10:12 a.m. EDT, May 22, 2007 North Dakota Democrat Sen. Byron Dorgan's amendment would eliminate the guest worker program entirely. The amendment offered by Sen. Jeff Bingaman, D-New Mexico, would cut the program in half. Sen. Lindsey Graham, R-South Carolina, one of the negotiators who crafted the agreement, said he is concerned about both amendments passing but especially Bingaman's because a similar amendment passed last year with 79 votes. Graham challenged critics to "do more than just shout amnesty." "This debate is about the future of the United States, when it comes to our national...