Is this issue not that important anymore? I think the economic issue has probably just overshadowed it. Personally, a candidate's stance on immigration reform is not going to "make or break" my support of anyone. However, even though the economy is the important issue of the time right now, it is only a matter of time before people start talking about immigration again.
Just an observation. Something to keep in mind.
I put down some of my thoughts on the issue here if you are interested in reading them.