Venezuelan interim President Delcy Rodriguez’s tribute to Fidel Castro has drawn a blistering rebuke from US Secretary of State Marco Rubio, highlighting the political tensions surrounding Caracas’ rapprochement with Washington even as China seeks to preserve its economic interests in the South American country. Rodriguez marked the centenary of the late Cuban leader’s birth this week by praising Castro as a figure who “transcends time” and invoking his commitment to sovereignty, social justice...