But what guarantees all 57+2 will vote for "yes"?

Last 2007 Bush time, in the Senate, there were several Democrats who didn't even vote or blatantly voted "no". Correct me if I am wrong.

I think there were several votes of "Yes" even from Republican sides.

Hmmm, I wonder about that now.

Remember we are talking about CIR. Not Dream Act. IMHO, CIR has much less chance to pass than DA. I am sure many agree with that. 12 M vs <1M. Big difference there.

Heck, there is also a chance that they might change their stance from CIR support to against CIR. Humans are very fickle and you never know until all votes are cast.

I am not sure whether we can get even get a single vote from Republican Senates, based on the trend of all republicans unite, just like all 177 house(100%) republicans united.

Sometimes I wonder whether really not giving up is really worth. While I stay here though, I will still try to view optimistic.