Grassley was looking into Hunter and CIFUS back in 2019. Look at this letter. A lot was happening behind the scenes.
Ties into the Breitbart article.
https://www.finance.senate.gov/imo/media/doc/2019-08-14%20CEG%20to%20Treasury%20%28AVIC%20CFIUS%29.pdf
https://www.breitbart.com/politics/2020/10/23/code-name-project-hanson-insider-documents-reveal-how-hunter-biden-associates-helped-chinese-military-contractor-acquire-michigan-dual-use-manufacturer/