


By Thomas Ferraro and Richard Cowan WASHINGTON (Reuters) - The push for comprehensive immigration legislation faces an uncertain fate in the Republican-controlled U.S. House of Representatives even as Senate supporters voiced optimism on Thursday for overwhelming backing in that chamber. As the Democratic Party-controlled Senate pushed ahead on an 844-page bill that aims to rewrite America's immigration law, the Republican-controlled House was still undecided on how broad of a bill it might consider - or even if it would advance legislation this year. ...