A former member of the far-right group testified at the trial that he was in contact with a Secret Service agent in the months leading up to the attack on the Capitol.
The trial of Rhodes and four others charged with seditious conspiracy in connection with the Capitol siege was called to witness by federal prosecutors.
The Oath Keepers gathered guns in preparation for the possibility that Donald Trump would use the Insurrection Act to stop the transfer of power.
"Not that I recall specifically," he said when asked if he knew of any connection between Trump and Rhodes.
He had a number for a Secret Service agent that he claimed to be.
The witness said he saw a phone call between Rhodes and his purported Secret Service contact at a Trump rally in North Carolina. He could not confirm that Rhodes was a Secret Service agent because he only heard one side of the call.
There is a mystery hanging over the prosecution of Rhodes.
On the night of January 6, prosecutors said that Rhodes tried to speak with Trump directly and urged him to call on groups to block the election of Joe Biden. Prosecutors said in a May court filing that Rhodes placed the call over the phone and urged the person to tell Trump to call the Oath Keepers.
The person who received the call hasn't been identified yet. According to the court filing, Rhodes turned to the group gathered with him inside the hotel suite and said, "I just want to fight."
The story is evolving.