The CIA has stopped contributing to some intelligence assessments, including those related to the Iran war, produced by the office of the nation's top spy as disputes over intelligence-sharing and areas of responsibility boil over, say people familiar with the matter.

A dispute between two of Washington's most powerful intelligence bodies has intensified after the CIA stopped contributing to certain national...

The CIA has stopped contributing to some intelligence assessments, including those related to the Iran war, produced by the office of the nation's top spy as disputes over…