Every single politician in DC. I don’t have specifics because I don’t really care.
I’d imagine stuff like family using their office to accept bribes from foreign officials(biden), Insider trading info(basically all of congress/senate), quid pro quo getting a cut in some way or form for sending our tax dollars in a particular direction(covid 19 stimulus packages), being a team player with the private sector they are supposed to be regulating on our behalf to get a sweet gig after leaving their office behind.
I think every government in the world runs on at least a little bit of corruption.