Attorney General Merrick Garland has released Volume I of Jack Smith's report, which focuses on the January 6 prosecution of Trump. Smith addresses one of the lingering questions: why did he not charge Trump with violating the federal insurrection statute (18 U.S.C. § 2383). In early 2021, Seth Barrett Tillman and I wrote an article anticipating a prosecution based on Section 2283, but that case would never come.
First, Smith explains that there was no clear definition under federal law for an "insurrection." He acknowledges that the Colorado Supreme Court found that the attack on the Capitol was an insurrection as that term was used in Section 3. Likewise, some federal courts in D.C. described the attacks as an insurrection. "These cases, however, did not require the courts to resolve the issue of how to define insurrection for purposes of Section 2383, or apply that definition to the conduct of a criminal defendant in the context of January 6."
During the Section 3 debates, Will Baude, Mike Paulsen, and many others, thought it was perfectly clear what an insurrection was, and that January 6 was clearly an insurrection. Smith did not think the issue was so clear. Seth Barrett Tillman and I also did not take a position on this question.