US senator: enough Iran sanctions support to override veto

There is sufficient support for expanded sanctions on Iran in the new Republican-controlled US Congress to override veto threats by President Barack Obama, a senator told radio broadcaster NPR Wednesday. The Obama administration and other global powers are in the midst of prolonged negotiations with Tehran to end a decade-long standoff over its nuclear activities, which the West sees as efforts to develop an atomic bomb. The White House has sought to dissuade US lawmakers from passing new sancti