I think it is called, “counsel of the circle of the neocons”, who were surrounding him. Manipulation, coercion, and lies. After all, he was a bit of a political newbie...God save us all.
I think like myself he made the mistake of knowing there was corruption but not knowing EVERYONE is corrupt in DC. It’s hard to believe, hard to get a grasp of first, but then when you see the time that has elapsed since the last real Republican President was in office, 1989 Ron Reagan, that is a pretty damn long time. That’s 28 years of the Bush/Clinton/Obama criminal cartels running things like the Mafia until Trump took office in which he made the massive mistake of publicly saying he was going to “drain the swamp” instead on infiltrating quietly first and making these domestic enemies think he was on their side.
Trump learned a lot from his first term. No. one hire loyal people only.
Fatso Chris Christy had a big role in recommending Wray to Trump.
That's pretty much it in a nutshell.