I think we need to do that, and if I recall he did raise taxes on corporations with the Inflation Reduction Act. It also looks like it was originally going to be a more ambitious increase, but for whatever reason that didn’t happen.

However, to your point he did not raise them to where they were at 35% before the Trump tax cuts were passed in 2017.

If I had to guess, it was probably because raising taxes is generally not a popular move with the general electorate; its an easy way to lose votes and piss off some powerful people (which makes the Trump tax cuts even worse in the long run.)