3rd Cir.

United States v. Lyons

April 28, 2026 ·24-2740 ·Panel Decision ·Bibas · By James Taylor

The Third Circuit affirmed the dismissal of a federal prisoner's habeas motion, ruling that a claim based on a new Supreme Court precedent was not novel enough to excuse procedural default. The court held that the legal basis for the argument was reasonably available to the defendant at the time of his plea.

Background

Aaron Lyons pleaded guilty in 2017 to possessing a firearm as a convicted felon under federal law. At the time, all federal circuits held that the government did not need to prove the defendant knew of their prior conviction status. After the Supreme Court ruled in Rehaif v. United States that such knowledge is required, Lyons filed a motion under Section twenty-two hundred fifty-five of Title twenty-eight of the United States Code, arguing his plea was unknowing. He claimed the Rehaif decision was too novel to have been raised earlier and that he was actually innocent because he did not know his status.

The court’s reasoning

The court held that Lyons failed to show cause for his procedural default because the legal basis for his claim was not novel. Although the Third Circuit and other courts had previously rejected the argument, multiple circuits had highlighted its potential merit, meaning the building blocks of the claim were available to defense counsel. The court also rejected the actual innocence claim, noting the plea record showed Lyons understood his conviction carried a five-year sentence and a ban on gun possession. Consequently, the record conclusively showed he knew his status, foreclosing the need for an evidentiary hearing.

What it means going forward

Federal prisoners cannot use the novelty of a new legal interpretation to bypass procedural default rules if the argument’s foundation was already present in existing case law. Courts will likely deny evidentiary hearings on actual innocence claims where the plea record establishes the defendant’s awareness of their conviction status.