The US has worn all international observers out, as much with its overly lengthy bilateral WTO negociations with Vietnam, and again with this PNTR. I looked at the news in many languages, but it does seem nobody really cares any more about this -- excepted in the US, and also in Vietnam.
Anyway, this is an intra-US issue which they, the US, will probably get settled in the course of this (coming) week.
You can follow the news ->
here and
here <- if you so wish.