Inflation has very little to do with tax-policy and deregulation of financial markets
Inflation is a consequence of
1. Monetary policy: artificially-low interest rates (like the ones we had for years before the current inflation problem) cause pricing distortions in the market, and excess liquidity
2. Fiscal policy: excessive government spending injects liquidity into the system, leading to "too much money chasing too few goods" and "people being paid to dig ditches". By the end of 2022, Biden and congress had introduced 3.37 trillion in new spending (surpassing Trump's 3.28 trillion during the 116th congress) and the number has gone up (ARA, IRA, etc.).
In addition to this, policies like student-loan forgiveness are directly inflationary
3. Supply shocks and disruptions: which we saw under the pandemic, but have largely vanished.
The Democrats and others have introduced this talking-point that inflation is caused by things like the Trump tax cuts and "corporate-greed", but there is absolutely no evidence or theory to support any of that. We didn't see a massive spike in inflation after that Bush tax cuts, and corporations have had pricing power for decades --they don't suddenly decide in the last 2 years to hike prices on everything. That isn't how it works, and no serious economist supports this talking point.
Now that isn't to say Trump doesn't deserve some blame for the inflation problem (he spent a ton of money), but not for the reasons Democrats put forth