Trump's top national security officials to brief "gang of eight" US politicians

The sources, who spoke on the condition of anonymity because the plan is not public, did not discuss the nature of the briefing, expected to take place at 15:30 (20:30 GMT).

The disclosure about the briefing comes amid mounting tensions between the United States and Venezuela, as President Donald Trump threatens land strikes against Venezuelan drug traffickers, after more than a three-month military campaign against drug boats in the Caribbean and Pacific.