that was Obama - Biden never promised that
https://jacobin.com/2022/08/joe-biden-public-option-health-c...
I can't think of any major campaign promise that he fulfilled
Renegotiate NAFTA
Lower Taxes
Move the US Embassy to Jerusalem
Nominate to the Supreme Court from the list he shared
Kill TPP
No Social Security Cuts
Take No Salary
Where he failed, it generally wasn't for trying, but because he was getting blocked by Congress, the courts, and the general bureaucracy. You only have to look at the last 48 hours to see a better prepared Trump committed to his promises.
He took 3/4 of his salary
I'm not sure "No Social Security Cuts" should count, because (1) he did try to cut it in his proposed 2020 budget, (2) he did nothing to try to address the shortfall that is expected in the social security trust fund around 2033, and (3) he said that if he was reelected in 2020 he would get rid of the payroll tax, which would have moved the depletion of the trust fund up to around 2026.