It's from "A Note On KGB Style" on the CIA website.
"The typical KGB officer, trained in an environment where political agitation is part of daily fare, sees political action and propaganda as part of his regular routine. There are numerous examples of Soviet officers around the world who seem to concentrate almost exclusively on pushing the Soviet line on the issues of the day with whatever contacts they meet. To them the political approach is not something apart from spotting, developing, assessing, recruiting and agent handling. It is integral to that effort. Some do it crudely, some ineffectively, some with great skill. The point is that in almost all cases, it is a part of the operation."
Here's the whole article: https://www.cia.gov/library/center-for-the-study-of-intelligence/kent-csi/vol15no1/html/v15i1a08p_0001.htm
It's saying that KGB officers "spin" everything they talk about through the Soviet political lens, and that this is of a piece with their more traditional "spy" work (like recruiting agents). "Political action and propaganda" here just means "pushing a Soviet-approved perspective," not just in official pronouncements or whatever, but in everyday interactions and conversations.
(It is an interesting paragraph, because it implies they don't actually see the world that way, to some degree. Like it is a special act they are doing, and not just an artifact of, you know, being a KGB agent. One can imagine a KGB writeup of CIA agents that said the same thing — "they always see things through the CIA lens, for some reason!")
The latest edition of The Atlantic has a story on how social media has been used to shape conflicts. It also delves into modern Russian policies to use propaganda to shape news stories to influence world opinion and bend it which might help you apply that paragraph to this more modern Cold War. The apparent state sponsored political hacking is another great example. People think espionage is all about stealing and killing but subterfuge is arguably an even more important tool.
https://www.google.com/amp/www.theatlantic.com/amp/article/503630/?client=safari