May 24 (Reuters) - U.S. lawmakers appearing on Sunday morning talk shows split sharply over a potential deal to end the Iran war, with Republicans mostly backing the publicly reported contours of an agreement being negotiated by President Donald Trump and Democrats dismissing it as accomplishing little.

Democrats, and some Republicans, have called on Trump to ask Congress for authorisation to use military force

President Donald Trump’s emerging deal to end the Iran war is drawing heavy criticism from some fellow Republicans.