Former Vice President Joe Biden is “compromised by a foreign power and unfit to be president,” according to Fox News host Steve Hilton in an op-ed about the 2020 contender.

Hilton describes the corrupt conflict of interest between the Obama’s vice president and the communist regime of China, as detailed in Peter Schweizer’s bestselling book Secret Empires.

In December 2013, then-Vice President Biden rode Air Force Two on an official trip to Asia, as tensions were high over disputed territories in the East China Sea. Biden was joined by his son, Hunter, who was building a private equity firm along with his business partner and friend, Chris Heinz – heir of the Heinz Ketchup family fortune and stepson of then-Secretary of State John Kerry.

Vice President Biden and Hunter Biden were ushered into Beijing on a red carpet with a delegation of Chinese officials. From there, Joe went straight into meetings with the vice president of China and President Xi Jinping. The next morning, the Bidens had a meeting with the U.S.-China Business Council. From there, it was off to Villa No.5 of the Diaoyutai State Guesthouse, where Madame Mao lived during the cultural revolution.

Joe Biden struck a soft, friendly tone with the Chinese leadership, disappointing allies in the area, like Japan, who were alarmed by China’s increasing aggression. But perhaps Joe had other issues besides the global balance of power on his mind, issues like his son’s business deals.

Hunter’s presence on the trip was far from coincidence. Just 10 days later, his company, Rosemont Seneca, signed an exclusive $1 billion deal with the state-owned Bank of China, creating an investment fund called Bohai Harvest, with money backed by the Chinese government. In the words of Peter Schweizer, who first unveiled these conflicts of interest in his book “Secret Empires,” “the Chinese government was literally funding a business that it co-owned along with the sons of two of America’s most powerful decision makers.” That is what it looks like to be “compromised by a foreign power.”