Unless the crimes are alleged to have been committed by the political classes themselves.

Lists of indictments (and convictions) by administration over the past 50+ years (dating to the Nixon administration) shows a sharp majority under Republican presidential administrations.

<https://gigafact.org/fact-briefs/have-there-been-significant...>

For a longer history: <https://en.wikipedia.org/wiki/List_of_federal_political_scan...>

Note that the US has had (by general consensus) six or seven party systems, with significant re-alignments occurring at several points.

<https://en.wikipedia.org/wiki/Political_eras_of_the_United_S...>

The two most recent shifts, which Wikipedia traces to roughly 1980 and 2016 have substantially changed what were traditional hallmarks particularly of the Republican Party. Whilst in rhetoric the GOP remains "tough on crime", in practice it rather more consistently hews to Wilhoit's Law: "Conservatism consists of exactly one proposition, to wit: There must be in-groups whom the law protects but does not bind, alongside out-groups whom the law binds but does not protect."

<https://crookedtimber.org/2018/03/21/liberals-against-progre...>.