Rep. Jason Chaffetz (R., Utah) tells National Review Online that “a growing number” of House Republicans oppose the tax deal. Tonight was the first time since the deal was unveiled that House members have been able to meet and discuss with one another, and Chaffetz says Republicans are growing increasingly wary of the amendments and earmarks included in the bill. “I think the support is eroding,” he says. “The more people understand that one third of the cost of this bill has nothing to do with the Bush tax cuts, the more unpalatable it becomes.”

The deal is expected to pass the Senate — likely sometime tomorrow — but as Rich mentions below, its chances in the House are very much up in the air.