I don't know that. They would have gone through a process of vetting, which is a different matter. The four-way checks on personal history, financial history, legal troubles and so on, those happen to everybody who is a potential nominee to cabinet. Anybody who would have been considered for a cabinet appointment would have gone through a background check at the time, but, again, those have to be renewed every so often if something has changed.
On May 30th, 2023. See this statement in context.