Baseless...there's just a tape of him admitting it and bragging about it, Hunter Biden was in fact on the Boards of those organizations in Ukraine and China raking in huge wads of cash with little or no qualifications to get the jobs while his father just happened to be the Vice President of the United States and overseeing foreign policy in both of those countries. Interviews exist of officials in Ukraine going back several months to the present about the goings on. But the AP (and other "news" organizations) continue to report there is "no evidence" of anything untoward having occurred.
And the only one at the debate who will challenge Biden on his foreign entanglements is Tulsi!
AP is the PR department of the DNC, they don’t even try to hide it anymore.