The email noted that China had been "targeting children of politicians and purchase of political influence through 'sweetheart deals.'"

On Wednesday, the House Oversight Committee revealed that a bank had flagged concerns over transactions from Chinese entities to entities owned by Hunter Biden in 2018, money from which eventually landed in the hands of Joe Biden.

"We have been monitoring the subject customer due to the PEP designation and observations on the account activity as well as recent negative news indicate this entity to be high risk," the internal email from the bank's money laundering investigator, sent June 28, 2018, stated.