Venezuela’s worst power and communications outage on Friday deepened a sense of isolation and decay, endangering hospital patients, forcing schools and businesses to close and cutting people off from their families, friends and the outside world. While electricity returned to some parts of Caracas nearly 24 hours after lights, phones and the internet stopped working, the blackout was another harsh...

Venezuelan opposition leader Juan Guaido has arrived back in Venezuela to renew his campaign to topple the government of President Nicolas Maduro.