He blew it big time on that first vote for the trade deal, and when the deal was changed couldn't put the genie back in the bottle. One of Trump's selling points is he doesn't make bad deals.
I'm one of the first people who gave to Cruz's campaign. But he should've been the conservative leadership in the US Senate to stop this thing. How does he undo the damage?
The same way all the winners do. Pander to the masses, screw the principled.