That is the subject of an ongoing US DOJ and Congress investigations. In case you missed the public hearings (where, for example, DOJ officials testified they were told by the former President to declare the 2020 election fraudulent even though they informed him it wasn't; this is known as a "self-coup"), the House Select Committee is expected to publish its findings in a final report by the end of this year; criminal indictments, if any (although we don't know yet if Mr Trump will be charged with insurrection), would likely be served within a year.