There are many other individual challenges that Frumin has yet to rule on. It's pretty difficult to tell which way the guy will go, though he does work for Democrats. I delved into the Senate Parliamentarian's politics in this story a few weeks ago.
Then, of course, there are the overall challenges by legislators like Rep. Michelle Bachmann (R-Minn.), who just wrote on this blog about her plans to challenge the constitutionality of Obamacare as a whole.
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