But security forces loyal to Maduro formed a cordon around the assembly building in central Caracas, blocking opposition lawmakers — who control the chamber — from entering. Lawmakers who back Maduro — including several allegedly involved in a government plot to buy votes — were allowed to pass. At one point, Guaidó sought to scale the spiked wrought-iron fence surrounding the assembly, trying to force his way in and shredding the jacket of his business suit.