"The President has made his position eminently clear, and in the next weeks and months, we shall see what we shall see," said John Bolton.

CNN International correspondent Fred Pleitgen explains how tensions between the US and Iran have been on the rise since the United States pulled out of the Nuclear agreement.

The American economy is already absorbing a body blow from the deepening US-China trade war. A real war could be more than the decade-long economic expansion can handle.

CNN's Don Lemon says the chaos and infighting in the White House aren't doing President Donald Trump any favors.

Venezuela's future is in limbo, as its embattled president continues to fend off a national movement for regime change. And whether President Nicolas Maduro consolidates his power, or opposition leader Juan Guaido takes control of the government, one longterm question hangs over the country's fate: "Who gets Venezuela's oil?"