I think that's just a smoke screen. I doubt any insider is gonna admit to a reporter that it's all about power brokers calling in markers.
Seriously, look at the overwhelming bipartisan opposition to illegal immigration. The GOP mayor of Hazelton who pioneered municipal ordinances against illegals won the GOP primary - AND the Dem primary with write-in votes. The polling numbers from honest polls are off the charts. If someone was interested purely in electibility, they would embrace this issue.
The fact that political animals such as Senators are standing in opposition to such a potent and growing political force, IMO, only means one thing: the power players who put these guys into power are pulling their strings.
It may very well be. I know all this talk about border security going on by Bush and Chambliss is a facade to fool people into supporting the bill so attempts at deception is nothing new to them in Washington. They simply can't be that stupid to know that the overwhelming majority don't want this pos bill.