The D.C. Circuit is due to rule any day now, quite possibly today, on Halbig v. Sebelius. For those who haven’t been watching the vigil I keep over at Dar​wins​Fool​.comNewsweek calls Halbigthe case that could topple ObamaCare.”


First a little background. The Patient Protection and Affordable Care Act offers refundable “premium-assistance tax credits” to qualified taxpayers who purchase health insurance “through an Exchange established by the State.” The PPACA contains no language authorizing tax credits through the 34 Exchanges established by the federal government in states that declined to establish one themselves, nor does it authorize the Internal Revenue Service to treat those federally established Exchanges as if they had been “established by the State.” Offering benefits only in compliant states was proposed by numerous Republicans and Democrats in 2009, for obvious reasons: Congress cannot force states to implement federal programs, but it can create incentives for states to act, such as by offering health-insurance subsidies to residents of compliant states.


Halbig is one of four cases challenging the IRS’s decision to rewrite the statute and offer tax credits in the 34 states with federal Exchanges. The plaintiffs are individuals and employers who are injured by the IRS’s overreach because, due to the PPACA’s many inter-locking pieces, issuing those illegal tax credits subjects them to illegal penalties.


Since a ruling may come today (or some Tuesday or Friday hence, as is the D.C. Circuit’s habit), here are some materials for those who want to hit the ground running.

Update: The D.C. Circuit has handed down rulings for today, and Halbig is not among them. Click here to check on the court’s most recent rulings.