Trump’s reemergence at CPAC is also a harbinger of an attempt to derail whatever further investigations of himself that he can.

By purging anybody from the Republican Party who is not totally “loyal” to him, Trump is also thwarting Republicans from looking into the January 6 Capitol attack.

Unfortunately, both parties are pulling back from doing this out of their own particular political concerns. This and the approach needed regarding the investigation is discussed in Trump's Back - So How Do We Prevent a Cover-Up of the Capitol Attack? []. The article also links to how the events leading to January 6 were predicted in the spring of 2020 and what we can do to prevent their recurrence by limiting the powers of the presidency.