Self coup.
https://www.cambridge.org/core/journals/government-and-opposition/article/trump-selfcoup-attempt-comparisons-and-civilmilitary-relations/16D5EF307C7DF49FCE86948D1569B014
The storming of the US Capitol building in January 2021 was a presidential attempt at a self-coup. To make the case, this article reviews elements of the Capitol assault and the events leading up to it, in light of the key conceptual components of a self-coup, and how those compare to attributes of other kinds of attacks on governments.