I’m pretty sure you know. Forgive me for not responding further, but your username doesn’t inspire confidence that you’d be willing to engage in an honest exchange of ideas. I hope to be wrong, but experience says that people who feel the need to advertise their tribal affiliation so overtly are seldom open to challenging their personal world view.

Most likely the 2020 election, which involved the January 6 insurrection and Trump's fake electors plot [1] (which goes beyond falsely claiming that the election was stolen).

[1] https://en.wikipedia.org/wiki/Trump_fake_electors_plot