Donald Trump
On January 23, 2017 Trump signed the executive order withdrawing the United States from the Trans-Pacific Partnership (TPP), a trade agreement between the United States and eleven Pacific Rim nations—Australia, Brunei, Canada, Chile, Japan, Malaysia, Mexico, New Zealand, Peru, Singapore, and Vietnam that would have created a "free-trade zone for about 40 percent of the world's economy." Two days later, he ordered the construction of the Mexico border wall. He reopened the Keystone XL and Dakota Access pipeline construction projects.