conspire with (someone) against (something or someone)

conspire with (someone) against (something or someone)

To join together in force or combine in such a way as to foil or defeat someone or something. I bet the CEO conspired with the head of HR against Tom. Why else would he have been removed from the company like that?
See also: conspire
Farlex Dictionary of Idioms.
See also:
  • catch a tiger by the tail
  • blame for
  • blame for (something)
  • blamed
  • bring (someone) to heel
  • bring someone to heel
  • bring to heel
  • call (someone) to heel
  • the blame for (something)
  • chain of command