Don Jr is calling out Creepy Joe for selling out the USA to China. His son, along with Kerry's son and their friend, created Rosemont Capital to launder money as Biden and Kerry made corrupt foreign deals.
Biden/China is a very important marker
https://twitter.com/DonaldJTrumpJr/status/1126874572584882176?s=19
"In December of 2013, for instance, Biden traveled to China for talks. He brought Hunter Biden along. While there, the senior Biden soft-pedaled China's clear aggression, and played up the bilateral trade partnership. Ten days after the trip concluded, China's central bank, the Bank of China, set up a $1 billion investment joint venture called Bohai Harvest RST. For the record, the "RS" referred to Biden's son's firm, Rosemont Seneca."
https://www.investors.com/politics/editorials/think-obama-administration-wasnt-corrupt-think-again/