All of this for nothing
So Republicans decided to demonize immigrants in this country in an effort to bring out the base, and Alabama Republican Jeff Sessions now says it's all for naught, which would have to be the absolute worst outcome for Republicans nationwide.
They are after all, the ones who tried to make this the issue of 2006. And if they fail to compromise, base voters already upset with provisions in the Senate bill are really going to start screaming if they get nothing done at all.
That said, I can't see them letting this bill fail. They know the stakes involved, and showing incompetence like that would be a death knell come November.