“It is possible Trump is ignorant of the vetting process but more likely he just does not trust the FBI to properly do the vetting.”
He needs to do the political vetting with his own people before turning the nominations over to the FBI, DOJ and/or other agencies for the criminal and conflict of interest vetting. He should have a team of trusted people in the White House who will look at the political and ideological backgrounds of potential candidates. This is not a job that can be delegated to Ivanka and Jared who are minimally social liberals.
Huck, Bolton and Newt would be great participants, for that vetting team.