WASHINGTON (AP) — Prosecutors are employing an unusual strategy to prove that leaders of the far-right Proud Boys extremist group orchestrated a violent plot to stop Congress from certifying President Joe Biden’s 2020 electoral victory. They’re calling it the “tools theory.” Prosecutors claim former Proud Boys national chairman Enrique Tarrio and four associates weaponized underlings to serve as tools of a conspiracy to stop the peaceful transfer of presidential power. Their trial began nearly two months ago and could stretch into April.