MURPHY, Circuit Judge. A jury convicted Adam Carson of robbing a bank and tampering with a witness; a district court sentenced him to 20 years in prison; and we upheld his convictions and sentence on direct appeal. In these post-conviction proceedings, Carson argues that his trial attorney provided ineffective assistance by failing to initiate plea negotiations and by committing several trial mistakes. He also argues that he did not knowingly waive his right to testify. Yet Carson’s ineffective-assistance claims fail on prejudice grounds. Even if a dispute of fact exists over whether he asked counsel to look into a plea deal, only speculation supports his claim that the parties would have reached a deal but for counsel’s inaction. The overwhelming evidence of his guilt also shows that counsel’s conduct at trial did not affect the verdict. Lastly, Carson did not object to his counsel’s statement that he did not want to testify. So our cases require us to presume that he knowingly waived this right. And while Carson now asserts that counsel misrepresented his wishes, he cannot rebut our presumption with this after-the-fact allegation. We affirm.

NALBANDIAN, Circuit Judge. Proceeding pro se in district court, Lyle Heyward filed a complaint alleging that prison officials frustrated his attempts to celebrate Ramadan in violation of the First and Fourteenth Amendments and the Religious Land Use and Institutionalized Persons Act (“RLUIPA”). He also alleges that officials retaliated against him for filing grievances in violation of the First Amendment. The district court dismissed Heyward’s claims. We affirm in part and reverse in part.