She's having to do that to counter Bill Richardson's lock on the Hispanic vote.
In the 2008 primaries all the professional political consultants will agree that the Democrats must recapture a larger percentage of the Hispanic vote in order to win the general election.
Hillary can never compete with Richardson in that area so she is attempting to create a backlash against Hispanics while winning favor with unions, blacks, and environmentalists who oppose immigration.
don't worry the wicked witch won't get past 2006