His use of political chicanery was not picked up by the public and he won the election.
Think trickery, rhymes with chicanery. Also related to subterfuge, which is when a person uses deceit to achieve a goal. Subterfuge is more of a scheme or strategy, whereas chicanery is using tricks to fool people, like a magician, who is full of chicanery.
The contravention by the defendant's lawyers in sharing FBI related discovery documents with the Russians so that they could alter and disseminate it, needs to be punished.
subject to sudden, inexplainable changes in mood or behavior
examples...
It was hard to agree to deal with the president because he was so mercurial, what he said in one negotiation did not agree to in the next. How can you negotiate with a mercurial president?