Tens of thousands of white-clad demonstrators flooded the streets of eastern Caracas yesterday in the largest show of strength so far against President Nicholás Maduro’s rule. The arrest of opposition firebrand Leopoldo López for fomenting unrest – and the heavy-handed tactics of security forces – hasn’t snapped the momentum of the demonstrations. Instead, Venezuela's fractured opposition banded together to denounce the jailing of Mr. López and the government’s broader crackdown on dissent.