House Republicans are moving quickly on a proposal to roll back the estate tax so much that it almost amounts to a repeal. House Ways and Means Committee Chairman Rep. Bill Thomas (R-CA) introduced a bill Wednesday that more or less matches the bill proposed by Sen. John Kyl (R-AZ). A floor vote is expected for Thursday. The Center on Budget and Policy Priorities estimates that the Thomas bill would cost the Treasury $602 billion between 2012-2021, or 75 percent of a full repeal. You can find more details on how the Thomas bill would change the estate tax in this Washington Post article.