https://foreignpolicy.com/2013/05/10/benghazi-emails-reveal-cia-state-department-turf-war-administration-officials/
https://www.washingtonpost.com/news/worldviews/wp/2012/11/02/wsj-state-dept-and-cia-had-secret-botched-deal-for-benghazi-security/
Sounds like a recent tiff, but
https://www.aarclibrary.org/publib/church/rockcomm/pdf/RockComm_Chap17_Relations.pdf
http://www.aarclibrary.org/publib/church/reports/book1/contents.htm
State Dept. and access to individuals/politicians/businesses/etc. Make for easy access to human intelligence gathering…