Susie Wiles is supposed to be the "adult" in the room, but since she's surrounded by sociopaths, sycophants, and clowns, she's got her work cut out for her.
Some recent insight into her role:
"But sources in the administration suggest that Donald Trump is tuning out Wiles’ voice of reason. The going is getting tough for the president, and he is looking for a little diversion. She is among the very few able to give him bad news. But right now, he doesn’t want to hear it."
The leakers in the WH (there are always some) say that Wiley isn't a fan of Musk or Laura Loomer, who has reinserted herself into Trump's world, most recently getting him to fire six national security officials. Loomer and Wiles are direct competitors for Trump's attention so this should be interesting.
https://www.thedailybeast.com/trump-pits-laura-loomer-against-susie-wiles-in-white-house-power-struggle/