With regard to the previous post, you can take the Machiavellian view that Boehner knows the Court will find he doesn't have standing because of the impeachment option. That the Court will say effectively "If you have a problem with presidential unlawfulness, impeach."
Then, Boehner can proceed with impeachment claiming "The Supreme Court told us to impeach Obama." That would certainly strengthen his argument for impeachment. However, I still don't see 2/3 of the Senate voting to convict.