President Trump put in years of secret planning to get CNN's White House correspondent kicked off his detail … at least according to Omarosa.

Trump's former aide was in D.C. Wednesday when a photog asked her about Jim Acosta and CNN suing POTUS for revoking his press pass. Omarosa was pretty nonchalant about it, because she claims the Prez held "private meetings" about Acosta back when she was still in the White House.

Omarosa claims booting Acosta, in particular, has been on Trump's agenda for a long time.