If a Republican Congress had passed the ACA, and a Republican president had signed it, how would the SCOTUS have voted?

  - by New Deal democrat

After all, Obamacare is similar to Romneycare, which in turn is based on a Heritage Foundation plan.

 If you don't think the vote would have been the same, then it must be true that at least some Justices voted for purely partisan reasons.

h/t DougJ at Balloon Juice