After years of tough negotiations, the United States, Japan, and 10 other countries agreed to a historic trade pact that will knock down tariffs and import quotas and open new markets for American companies. It’s the largest regional trade agreement in history. Now it needs to pass the U.S. Congress. We’ll take a look at where US lawmakers stand on the deal and whether it’s likely to reach a consensus in Congress with Philip Levy. He’s a senior fellow on the global economy at the Chicago Council on Global Affairs.