The United States on Friday signaled it was ready to step up economic measures to try to drive Venezuelan President Nicolas Maduro from power as some U.S. diplomats left the embassy in Caracas and Russia vowed to back its socialist South American ally.
Source: [url=http://feeds.reuters.com/~r/Reuters/worldNews/~3/2IIECkjip0k/u-s-steps-up-pressure-on-maduro-as-russia-backs-venezuelan-ally-idUSKCN1PJ1QR]U.S. steps up pressure on Maduro as Russia backs Venezuelan ally[/url]