Oral argument was held today on a Constitutional challenge to Obamacare.
A general Constitutional challenge to the validity of the entire Act will surely fail -- even if a specific clause -- viz. specific clauses -- is -- viz. are -- ruled to be flawed.
The U.S. Supreme Court consists of legally trained persons versed in the vagaries of "the law" who will not fall like nine-pins for obvious jurisprudential sophistry.
There may be legislative flaws in the Affordable Care Act, but it is up to Congress to iron out such shortcomings, and not the Supreme Court, which perhaps could sever flawed clauses, however leaving the balance of the Act itself intact.