A majority of likely Republican voters favors an approach to U.S. immigration policy that combines enforcement and a path to citizenship, and they want the changes this year, according to a national survey. Other groups, including business lawyers and immigrant supporters in the Buffalo region, attach similar immediacy to their ideas. Though adjustments in the law are unlikely to happen this year, given Congress' reluctance to take up the emotional issue before the November elections, supporters are not abandoning their calls for change. .