The defendants were pictured in numerous videos and photos among the throngs of people around the Capitol on 6 January last year. Some of them entered the building. But their lawyers have argued that there was never any concrete plan or conspiracy to storm the building in order to halt certification of the 2020 presidential election.
Prosecutors countered by arguing that they do not need to prove a specific plan to invade the building, only that the defendants agreed among themselves to attempt to halt the peaceful transfer of the presidency.
In one recording made by an informant, Mr Rhodes is heard saying: "We should have brought rifles. We could have fixed it right then and there." He goes on to talk about hanging House Speaker Nancy Pelosi.
The Oath Keepers referred to the cache as a Quick Reaction Force or QRF and talked about ferrying weapons into the city by car or boat in case of mass disorder. One Oath Keeper testified that it was the biggest cache of weapons he had seen since leaving the US military.
Defence lawyers argued that the fact the weapons were never used or even brought into the city bolsters their argument that the Oath Keepers were on a purely defensive mission, intending to protect protesters and keep the peace inside and outside the Capitol.
Mr Rhodes did not enter the Capitol, but instead stayed outside, taking phone calls and sending messages. He says he was preparing for Mr Trump to invoke the Insurrection Act, a law dating from 1807 that allows the president to deploy troops in the event of civil disorder.
If the jury does not deliver a verdict on Tuesday, the outcome of the trial will not be known until next week at the earliest because of the court being closed for the Thanksgiving holiday.
A pro-gun, anti-government group launched by Mr Rhodes in 2009, the Oath Keepers is named after the oath of service that police, military and other officials take. They focused recruitment efforts on people with military and law enforcement experience, along with other first responders.