I have no doubt the US mainstream media is well practiced at propaganda methods, but I don’t understand exactly what you mean. examples?
This is my examples, read this then go watch and/or listen to the “news” yourself for constant examples:
Ever notice when you watch or hear (not read to some extent) the supposed “news” on TV, on video, streaming, etc. their tone is one as if that told you they got back from a routine errand, slightly serious tone, anunciating certain words, slight or pronounced nods/etc. on certain words/phrases, eyebrow movements, featuring “on cue”, etc.?