A major Asia-Pacific trade agreement is among the things President Obama would like to achieve in his last two years in office. U.S. and Japanese negotiators have been in Tokyo working on the deal for several days. And they report progress. Still, President Obama faces stiff opposition at home from fellow Democrats. Here's NPR's Scott Horsley to walk us through the ABCs of trade politics.
SCOTT HORSLEY, BYLINE: Before he can pass the TPP, Obama needs Congress to OK the TPA. The GOP says A-OK, but many Democrats say no way. That's why the president's turning to MSNBC. Got that? The TPP is the Trans-Pacific Partnership, a proposed trade pact covering a dozen countries around the Pacifi...
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