You may not like Trump but I remember he fulfilled or attempted to fulfill a lot of his campaign promises back in 2016 as well. Biden, the career politician, talked a lot about many things before election and then forgot about them after he was elected. For example, universal health care. Obama promised to enshrine a woman's right to abortion as law, and then when he had the House and Senate after he was elected, he said "it's not a priority for me." Then we lost Roe V Wade.
That's a really low bar with that bit added. "I didn't say it would be easy" was his line about his token tariffs the first term ... then he never tried again for the rest of that term.
Trump did just about what every president does - makes promises and then does some of them, tries to some others (successful unless thwarted by Congress), and ignores others.
Obama didn't have the votes in the Senate (to overcome the filibuster, also not as many Dems congressmen supported it as you might think). Neither did Clinton (people thought it would happen then)
Let's go through Trump's campaign promises: Infrastructure, Border wall, increased US manufacturing, repealing ACA, "drain the swamp". He achieved zero of those.
Biden in contrast followed up on his campaign promises: Infrastructure, increased US manufacturing, expanding ACA plus lowering costs. Among others.
Biden delivered on the IRA and climate change bill.
Trump promised to "drain the swamp" and filled it instead. I can't think of any major campaign promise that he fulfilled - he didn't even build the wall (probably his main promise).
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.
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.
when there's political gain, sure