Republican presidential candidate Donald Trump says that the US is in danger of experiencing a "very massive recession" due to its high levels of unemployment and its teetering stock market.

"I think we’re sitting on an economic bubble. A financial bubble," he told the Washington Post.

Trump argued that the true image of unemployment in the US is far worse tan the Bureau of Labor Statistics describes it. "We’re not at 5 percent unemployment. We’re at a number that’s probably into the twenties if you look at the real number."