"Obamacare, Obamacare! stay a little. Ha!*

As Greg Sargent never tires of reminding us, Republicans have been promising an ACA replacement plan for 50 months now and haven't been able to deliver. Ergo, Sargent asserts, claims by Republican legislators that they are developing a plan to replace the ACA and keep premium subsidies flowing should the Supreme Court rule for the plaintiffs in King are a ruse, designed to convince swing justices that chaos won't erupt if the court invalidates subsidies credited through the federal exchange.

That is probably at least partially true, as Republicans have long proven themselves unable to unite behind a plan that would replace a large portion of ACA benefits while creating different winners and losers. But there are plans and plans (and motives and motives), and elected officials don't yank away existing benefits lightly. While Republicans may well be paralyzed by a Supreme Court decision that gives them what they say they want, there are elements in the plans they're floating that could find their way, sooner or later, into a post-King settlement.  Republicans' lack of unity could lead them to punt, perhaps declaring victory with relatively modest gains while restoring most of the status quo.

Most interesting in this regard are Republican proposals to freeze or patch the the current system while they devise a fix. Here's how one very sympathetically worded account describes such a measure:

Minnesota's "public option"

Ever since I read in fall 2013 that ACA bronze plan deductibles average over $5,000 per person, I have been concerned about the availability of such essentially catastrophic coverage at tempting low premium prices to low income ACA buyers -- who we now know are the vast majority of ACA private plan buyers (83% of buyers on healthcare.gov have household incomes under 250% of the Federal Poverty Level).

Hence my preoccupation with Cost Sharing Reduction subsidies, available only with silver-level plans, which reduce out-of-pocket costs to less prohibitive levels.  A silver plan has an actuarial value of 94% for buyers under 150% FPL and 87% for those at 200-250% FPL. But silver plans are expensive for low income people. The benchmark second-cheapest silver plan costs 4% of income for buyers with incomes in the  138-150% FPL range and about  6% for buyers with incomes at 150-200% FPL. That's a lot --  $118 per month for a single person earning $23,000. And  a plan at that price may still carry a per-person deductible as high as $1,500 for those in the 150-200% FPL range.

The ACA allows for a more truly affordable option, but only one state has taken it -- in fact, has long had it. That's Minnesota, which since 1992 has had a program similar to Medicaid, MinnesotaCare, serving residents with incomes up to 200% FPL.  As of Jan. 1, 2015, MinnesotaCare was approved as a Basic Health Plan (BHP) under the ACA -- that is, a state-run plan serving residents with incomes between 138%  and 200% FPL (those below 138% qualify for Medicaid, known in Minnesota as Medical Assistance). Under ACA rules, the federal government pays 95 percent of the ACA subsidies to which enrollees in the plan would have been entitled if they enrolled in private QHPs.