The latest way is explained by the AP like this:
Several people close to the president say his reliance on a small cadre of advisers as he mulled firing Comey reflects his broader distrust of many of his own staffers. He leans heavily on daughter Ivanka Trump and son-in-law Jared Kushner, as well as Hope Hicks, his trusted campaign spokeswoman and Keith Schiller, his longtime bodyguard. Schiller was among those Trump consulted about Comey and was tapped by the president to deliver a letter informing the director of his firing.
For those keeping track, Trump relies on his daughter, her real estate empire legatee of a husband, a young woman whose career training was in corporate public relations, and his bodyguard to help him make decisions about how to do his job as leader of the free world.