USA Update How the Trans-Pacific Partnership could define President Obama's legacy

In agreements reached on Monday, the TPP could become the largest free-trade pact in over 20 years. 

Kevin Lamarque/Reuters

The 12-nation free-trade pact, named the Trans-Pacific Partnership (TPP), came to agreement after five years of negotiations Monday. The largest trade accord since the North American Free Trade Agreement (NAFTA) took effect in 1994, the TPP could represent a “legacy-defining victory” for President Obama, should it successfully pass in Congress next year.