Former Oath Keepers Lawyer Pleads Guilty to Tampering With Jan. 6 Evidence

The former lawyer for the Oath Keepers militia pleaded guilty on Wednesday to advising members of the far-right group to illegally delete their text messages after the violent mob attack on the Capitol on Jan. 6, 2021.

At a hearing in Federal District Court in Washington, the lawyer, Kellye SoRelle, admitted to charges that included tampering with evidence and illegally entering and remaining in a restricted area of the Capitol grounds.

After Donald J. Trump lost the 2020 election, Ms. SoRelle, who is based in Texas, had close ties to the “Stop the Steal” movement, which claimed that Mr. Trump had been cheated out of a victory in his run against Joseph R. Biden Jr. She also served as the general counsel of the Oath Keepers and had a romantic relationship with the militia’s leader and founder, Stewart Rhodes, who was found guilty at a trial in Washington of seditious conspiracy for his role in the attack and sentenced to 18 years in prison.

During Mr. Rhodes’s trial, prosecutors presented evidence that he and Ms. SoRelle worked closely for weeks organizing the Oath Keepers to descend on Washington on Jan. 6. The evidence also showed that she was present at a mysterious meeting in an underground parking garage near the Capitol on the day before the attack where Mr. Rhodes met with Enrique Tarrio, the leader of the Proud Boys, another far-right group instrumental in the violence.

On Jan. 6 itself, Ms. SoRelle accompanied Mr. Rhodes to the Capitol, although neither entered the building. Still, court papers say that after the building was stormed and dozens of Oath Keepers came under scrutiny by federal investigators, Ms. SoRelle advised Mr. Rhodes and other members of the group to delete encrypted messages from their cellphones.