Why Wait too long? Here is Liz Cheney's Preliminary Concession Speech.

Liz Cheney is up against an awkward obstacle.

 In a few days, she will give the speech that will have the biggest impact on her career to date. According to the polls, it will very definitely be a surrender speech.

She appears to be planning to use a congressional loss to launch a presidential bid, according to all indications.

The task is simple rhetorically

admit failure while projecting a winning attitude. More specifically, Cheney needs to send a message that her loss of the GOP primary for her Wyoming House seat is not the end of her political career but rather the beginning of a new chapter in which she plans to be one of the most significant figures in American politics. 

Cheney is sure to say something along these lines.

"First of all, let me tell all of my friends in Wyoming and across the nation that I made peace with this moment a long time ago.

Although the outcome is not what we had hoped for, it is nonetheless a triumph for everyone who believes that upholding the Constitution, standing up for what is right, and ensuring the future of our democracy are more important than clinging to power or possessing a fancy title.

She might be saying something like this

I still find it incomprehensible that Wyoming's hard-nosed, no-nonsense populace would reject a Cheney in favour of such a blatant liar. 

I'm not exactly at peace, so no. However, I did predict this development 17 months ago, and once I set out on the path of fighting Trump, there was no turning back.

Why do you suppose I kept so much of the cash that was pouring in from Democrats and Never Trump supporters in this primary? It's the war chest that will keep me viable on the national scene. I will never be House Speaker, so no. Don't worry, though; I do intend to run for president. I've already left a good number of breadcrumbs.