<p>It is rare, almost unheard of in fact, for both the United Farm Workers Union and the California Farm Bureau to support the same major piece of immigration and labor legislation. But a new bipartisan bill in Congress has won the backing of the two longtime political foes. It offers an imperfect but pragmatic and politically practicable way to deal with one of the most difficult issues facing the country: the crush of illegal immigrants working in agriculture.</p>