Ms. Cheney shares some of her father’s speaking tonalities and mannerisms. There’s that same precision and even keel, the disinterest in public opinion vs. their own perspective, the emphasis on American exceptionalism, and the little extra current produced by a subtle wryness, like they might end a speech, “Thank you; I’ll see you all in hell.” Setting aside the larger policy matters, some of the qualities people hated (or loved) about Dick Cheney are ones people love (or hate) about Ms. Cheney.

Since Mr. Trump announced for president in 2015, his emotions have shaped politics, from policy to the everyday tenor of the White House to the relentless campaign against those he believes have wronged him. His emotional valence echoes throughout American politics and culture, and worked to increase the pitch and excess of those who support him and many who respond to him. Even the select committee drifts into this excessive dimension in highlighting the tabloid (see: the dripping ketchup), which the public and especially media sometimes elevate over more dire information. In this general universe of emotion, Ms. Cheney’s ordered lack of it might be the source of public fascination with her currently, even beyond the intrinsic anger and praise for people who break with party.