Sri Lanka, March 5 -- US Senate Republicans backed President Donald Trump's military campaign against Iran on Wednesday (Mar 4), voting to block a bipartisan resolution aiming to stop the air war and require that any hostilities against Iran be authorised by Congress.

The Senate voted 53 to 47 not to advance the resolution, largely along party lines, with all but one Republican voting against the procedural motion and all but one Democrat supporting it.

The latest effort by Democrats and a few Republicans to rein in President Donald Trump's repeated foreign troop deployments, the war powers resolution was described by sponsors as a bid to take back Congress' responsibility to declare war, as spelled out in the US Constitution.

Opponent...