Twelve days after Hunter stepped off Air Force Two in Beijing, his company signed a historic deal with the Bank of China, the state-owned financial behemoth often used as a tool of the Chinese government. The Bank of China had created a first-of-its-kind investment fund called Bohai Harvest RST (BHR). According to BHR, one of its founding partners was none other than Rosemont Seneca Partners LLC.

It was an unprecedented arrangement: the government of one of America’s fiercest competitors going into business with the son of one of America’s most powerful decisionmakers.

Chris Heinz claims neither he nor Rosemont Seneca Partners, the firm he had part ownership of, had any role in the deal with Bohai Harvest. Nonetheless, Biden, Archer and the Rosemont name became increasingly involved with China. Archer became the vice chairman of Bohai Harvest, helping oversee some of the fund’s investments.

Troublingly, some of those investments had major implications for national security.