This is one of the main reasons the GOPe, as well as so-called Conservative talk radio (Levin, Beck, Limbaugh)are so opposed to Trump ...they want open-borders and corrupt trade deals ...
The GOPe Platform:
Trade Surrender
Open Borders
Interventionism (placing U.S. military at service of globalists)
Is it legal to just rip up treaties without senate?
The current trade framework was negotiated after the cold war to end war by redistributing wealth and industry from wealthy nations like the US, to poor nations like India, Mexico and China.
The global liberal elite believe poverty causes war. These trade agreements, devised by the globalists are not stupid, they are evil. They are socially and economically engineering us into the Detroit of the globe - on purpose.