Push for pan-Pacific trade pact suffers blow from U.S. Senate Democrats

By Krista Hughes and Richard Cowan WASHINGTON (Reuters) - U.S. President Barack Obama's push for a pan-Pacific trade pact, a key part of his strategic pivot to Asia, suffered a major blow at the hands of Senate Democrats on Tuesday when they blocked debate on a bill that would have smoothed the path for the deal. The stunning outcome cast doubt on the Trade Promotion Authority (TPA) "fast track" bill which is key to the Obama administration's ability to complete the 12-nation