Brett Marston has a couple of interesting posts, here and here, arguing that it is hypocritical for Republicans to simultaneously oppose requiring an extraconstitutional supermajority (overriding a filibuster) on judicial nominees while supporting Trade Promotion Authority and thus allowing a simple majority vote on treaties rather than the Constitutionally-required 2/3 supermajority.
I have always understood fast track/TPA to simply require, like base closures, the Senate to vote up-or-down with no amendments, thus making the executive the sole negotiator. I have never seen anything that implied the treaty would also pass minus the 2/3 supermajority and I’m unable to answer the question quickly via Google.
Assuming Brett’s understanding of TPA is right, then his argument is correct. Personally, I would oppose both the filibustering of nominees and the flouting of the supermajority requirement on treaties. I already oppose the longstanding practice of presidents issuing “executive agreements” that bypass the Senate on quasi-treaties.
Update (1308): Francesca is mad as hell and wants to sue.