"One by one, we are keeping the promises I made to the American people during my campaign for president," Trump said when he withdrew from the Paris Climate Accord.
And will America's exit dramatically impact the global economy?
President also signs executive orders declaring a federal hiring freeze and banning NGOs from performing overseas abortions if they receive federal funds.
When a country's prosperity is dependent on trade, it's far less likely to get into wars.
The Republican nominee's proposals would add more than $10 trillion to the national debt in the next decade.
Sanders backers did prevail in an effort to add support for a $15-an-hour federal minimum wage to the party platform.
Both Republicans and Democrats are deeply divided on trade this election, setting up convention showdowns over the language on trade in their party platforms.
China insists it has undisputed sovereignty over most of the South China Sea, a claim that overlaps with four ASEAN countries.
Orrin Hatch, a Republican whose support will be crucial, said negotiators might have to go back to the table.
The details had been kept under wraps during the more than five years of negotiations.
Recent moves in the Republican-controlled House suggest a thaw.
Clinton's opposition to the deal reflects the Democratic Party's shift to the left and the changing politics of trade in both parties.
They're all over the map on the huge international trade deal.
The sweeping deal could influence everything from the price of cheese to the cost of cancer treatments.
The AFL-CIO's Richard Trumka also chides Kasich and Trump and lauds Biden.
After two brushes with failure, lawmakers are expected to grant Obama the power to negotiate trade deals and send them on a fast track through Congress.
The fight for the almost-dead trade deal is not an easy one.
The short answer: a giant trade agreement between the U.S. and 11 other nations. The long answer: We don't know.
Critics hate it. Supporters call it a godsend. Here's a guide to the the Trans-Pacific Partnership, Washington's next big fight.