With trade agenda at risk, Obama pleads with Democrats

President Barack Obama headed to Congress Friday to personally lobby reluctant Democrats not to torpedo a bill to give him authority to pursue a sweeping free trade agenda. The House of Representatives was set to vote on final passage of so-called Trade Promotion Authority, and while Republican leaders say they have the momentum to get it across the finish line, the vote remains a toss-up. TPA, which has already passed the Senate, would allow Obama to finalize negotiations with 11 other Pacific