Venezuela's Guaido says intelligence agents detained his chief of staff

Venezuelan opposition leader Juan Guaido said on Thursday intelligence agents had detained his chief of staff following a pre-dawn raid, signaling that President Nicolas Maduro may be cracking down on the opposition’s challenge to his rule. U.S. Secretary of State Mike Pompeo, in a post on Twitter on Thursday, called for Roberto Marrero’s immediate release and said “we will hold accountable those involved.” The United States has repeatedly warned Maduro not to move against Guaido. More…