Democrats and Republicans are both corrupt and commit crimes—but Democrats are far, far worse.
Trump uncovered the Democrat money-laundering operation in Ukraine, where the former Obama administration, particularly Biden, were enriching and ingratiating themselves. This was Trump's "number one" crime, to the Democrats. They tried to impeach Trump, for uncovering their filthy scandal. They were paying themselves millions upon millions, of tax payer money, using this loophole.
Trump also uncovered the Democrat voter-fraud schemes and tactics. They had to stop an Election in progress, to 'find' mass votes to flip key counties, at 3-4am after Election Night. Democrats needed more time, because they were set to lose a second time. Hence January 6th, where Trump loyalists protested the Steal.