Why would they do that? Most have a state income tax too, but they don't collect on behalf of the Feds for that. You'll find there will be a lot of resistance to doing so as another "unfunded mandate."
Remember the Articles of Confederation? That was unsuccessful because the states refused to collect taxes on behalf of the Feds. I can imagine that some states who would be opposed to spending from a specific administration might just refuse to send in the money as a protest. Would Massachusetts refuse to send in their fair share so as not to support the war in Iraq?
Asking the states to collect it is a losing proposition.
Okay - the admin. is a point of contention. However, it should be discussed.
It's not an "unfunded mandate". It's funded out of the tax receipts.
I thought we settled the issue of rebellious states 140 years ago, 10th Amendment notwithstanding (obtw, I'm a Virginian). Maybe there has to be something in it for the states - certainly worthy of discussion. I just know what would happen to me if I refused to send in my taxes to the IRS as a protest. There HAS to be a better way than the current system which penalizes productivity.
I suppose they might be willing to refuse if they were also willing to give up their senate and house seats. Do you suppose they might be willing to give up those seats for not collecting?