It was a historic night that called for soaring rhetoric and unvarnished authenticity. Instead, Hillary Clinton and Donald J. Trump delivered victory speeches on Tuesday that leaned heavily on campaign clichés — in many cases, the same ones.

On the page, anyway, the ideological and stylistic chasms that separate them start to dissolve in a sea of overlapping oratorical devices, similar phrases and at times identical word choice.

Are their speechwriters out of juice? Or is the hackneyed phrase just too irresistible?

We identified the passages that sounded the most alike:

TRUMP: Tonight we close one chapter in history and we begin another.

CLINTON: Now you are writing a new chapter of that story.

It’s a country, not a book. But this speechmaking construct won’t die. Mrs. Clinton tries to infuse the familiar trope with the concept of inclusivity. Mr. Trump just trots out the same old wooden metaphor.