All four Northwest Senators voted against the Keystone XL Pipeline bill on Tuesday.  The bill needed 60 percent approval and failed by one vote, with 59 saying yes and 41 against.  Oregon’s Ron Wyden and Jeff Merkley, and Washington’s Maria Cantwell and Patty Murray all voted against the bill.  Proponents of the pipeline say it would help the U.S. move away from relying on energy sources in unstable areas of the world, while environmental activists claim it would jeopardize public health and spike carbon emissions.