[Lurking Libertarian]

Someone help me here. Does this mean that another challenge can be made to Obamacare that the mandate tax is unconstitutional?

Not as I read it. Chief Justice Roberts' decision not only held that the mandate is a tax, it held it is a valid tax; the opinion discussed, and rejected, the argument that it is a direct tax which has to be apportioned and the argument that it is an unconstitutional penalty.

[yellowhammer]

I'm hoping Mark Levin will have something good to report on Monday after he has a chance to thoroughly look over the ruling this weekend.

[fortheDeclaration]

Yes, but it wasn’t appealed to as a tax and so the issue of the 5th amendment was never raised.