Question

2000, Donald Gibson, The Kennedy Assassination Cover-up, ISBN 1560727276, page 34:

North not only makes Hoover primary in the FBI's complicity in the cover-up, a fairly common mistake, but also attempts to implicate Hoover in events leading up to the assassination.

Accepted Answer

(idiomatichttps://en.wiktionary.org/wiki/Appendix:Glossary#idiomatic) To set in motionhttps://en.wiktionary.org/wiki/set_in_motion; to act as a causalhttps://en.wiktionary.org/wiki/causal or preparatoryhttps://en.wiktionary.org/wiki/preparatory eventhttps://en.wiktionary.org/wiki/event or sequencehttps://en.wiktionary.org/wiki/sequence of events.

Sentence	2000, Donald Gibson, The Kennedy Assassination Cover-up, ISBN 1560727276, page 34: North not only makes Hoover primary in the FBI's complicity in the cover-up, a fairly common mistake, but also attempts to implicate Hoover in events leading up to the assassination.
Definition	( idiomatic https://en.wiktionary.org/wiki/Appendix:Glossary#idiomatic ) To set in motion https://en.wiktionary.org/wiki/set_in_motion ; to act as a causal https://en.wiktionary.org/wiki/causal or preparatory https://en.wiktionary.org/wiki/preparatory event https://en.wiktionary.org/wiki/event or sequence https://en.wiktionary.org/wiki/sequence of events.

Cover Up Hoover Donald Gibson Kennedy Assassination Isbn Page