The Supreme Court could rule on the health care law as soon as Monday. If the Court does overturn the individual mandate, it is almost certainly going to be on a party-line vote, with the five Republican-appointed justices voting against the law. As we've covered on this blog before, the irony of that is that the individual mandate was a Republican idea that Democrats embraced in the late-Aughts in order to win Republican support.

Last night, I sat in for Rachel Maddow, and with the help of her crack staff, dug deep into the video archive around the individual mandate. You might be surprised at what we found. Sen. Ron Wyden joins towards the end of the clip.

Related: My New Yorker piece on why and how political parties change positions.