You can actually watch him make this absurd claim with a straight face here:
The scandals of the Obama-Biden administration have been well-documented, but also well-covered-up by the media. They refused to give the scandals of the Obama-Biden administration the coverage they deserved when they happened, and they refused to challenge Obama when he repeatedly made claims of having a scandal-free administration and they certainly aren't going to challenge Biden echoing those same claims. I will, however, because unfortunately, too many people believe the myth of the scandal-free presidency of Barack Obama. So, here are just ten scandals of the Obama-Administration that Sleepy Joe is apparently proud of.
Abbreviated list found below:
10. New Black Panther Party Scandal Scandal
9. Walpin-Gate AmeriCorps Firing Scandal
8. The Green Energy Loans Scandal
7. The Secret Service Prostitution Scandal
6. Iran Ransom Scandal
5. Fast & Furious Scandal
4. The Benghazi attack cover-up
3. The IRS Scandal
2. The Veterans Health Administration Scandal
1. The Trump Spying Scandal