What makes you think they never did? Maybe its are rare thing to do in the US, but with foreign governments, especially those where corruption is rampant I'd im

What makes you think they never did? Maybe its are rare thing to do in the US, but with foreign governments, especially those where corruption is rampant I'd imagine this is nothing unheard of. By the way, TPP is circulating within many governments. For example it could have been leaked by a Vietnamese government official.