re: Did the Democrats succeed in Trump's first 4 years?

Look at what's in public school text books and being taught at public colleges (largely without any controversy).

Yes they succeeded and are continuing to succeed. That's not on Trump any more than Bush or others, but when you can go on CNN or into a public college classroom and speak about how believing in biological sex is actual violence against trans people, and nobody runs you out of the building, then I'm not sure if I really care about tax cuts.