Republicans are usually pretty good with ratifying trade deals, particularly ones signed by Republican presidents like Dumbya.
So why are they balking on this?
Obama re-negotiated key portions of the agreements with each country with an eye towards improving relations with (or in) each nation.
He also linked ratification of the treaties with an expansion of the Trade Adjustment Assistance bill, to extend job training and subsidies to American workers whose skills are thin and whose jobs are being outsourced, in part because of the trade deals.
Republicans: serving the Corporatocracy since 19--, 18--, OK, since 1776!