As part of the planning to interrupt the congressional proceedings on Jan. 6, 2021, the Oath Keepers staged weapons in a hotel across the river from D.C., in a hotel in Arlington, “to physically prevent members of Congress from certifying the election,” federal prosecutor Jeffrey S. Nestler said in his opening statement. Making an agreement to do that, even if it wasn’t in writing or spoken specifically, qualifies as a conspiracy, Nestler said.