Political fallout would be huge if this thing doesn't go through, right? All players in the game are heavily invested in this passing because without it, years are wasted, so I'm expecting it to pass.
Personally I believe the sheer scope is reason enough to reject it on principle as a massive abuse of process.
The problem with saying this,
> Because tons of it is likely to be things that would not pass if they were part of small little individual deals where the vested interests were not so huge.
Is that the thing that potentially would pass would never make it out to see the daylight without negotiation, which is how you get the things that potentially wouldn't pass stand-alone. (And I say potentially, because for every person we're probably talking about different things.)
The larger such an agreement becomes, the murkier it ets. Given the complexity, it will take at least a decade after TPP is ratified before all the implications become clear. We better hope we like the results. But I'll predict that long before that we'll have a string of lawsuits filed over the effects.
(Similarly, once TTIP comes up for ratification, I equivalently expect ratification attempts themselves to be met by a number of legal challenges across the EU, followed by a number of legal challenges over the effects of it; If ISDS is part of a final ratified agreement, I'd expect it take at least a decade to sort out the legal mess alone)
This depends on perspective.
In terms of domestic elections, chances are the TPP won't make a real difference in countries like the US or Canada one way or another. Foreign policy generally only affects domestic elections at its extremes, e.g. winning/losing a war. Voters might be for or against TPP for any number of reasons, but chances are when they actually step into the voting booth, TPP will be low on their list of reasons for voting whichever way they do.
In terms of international relations, reneging on a huge deal that was painstakingly negotiated over seven years is obviously never a good thing. But it's hard to say how or when that could come back to bite whichever countries back out of the deal.
Is "winning" a possible outcome from wars? It hasn't happened during my parents' lifetimes. All of the losing we've been doing doesn't seem to have affected our commitment to outspending the rest of world combined to support the military-industrial complex. Do elections have something to do with that?