Barack Obama won some political breathing space at home for his diplomacy with Iran on Tuesday when the Democratic senator who has co-authored a new sanctions bill said he would hold off voting on the proposal for another two months. Bob Menendez, the leading Democrat on the Senate foreign relations committee and one of the most hawkish members of Congress on Iran issues, said in a letter to Mr Obama that any vote on Iran sanctions should be put off until the end of March. More On this story On this topic IN US Politics & Policy Republican leaders in Congress could still decide to go ahead with the proposed sanctions legislation, which is due to be discussed in committee hearings starting later this week. However, the temporary truce declared by Mr Menendez and other leading Democrats who had supported sanctions will make it almost impossible to get the […]