"We have every reason to believe a Trump memoir would be primarily misinformation, ungrounded opinions and flat-out lies."

"Don’t pay him to do it and don’t give him the legitimacy of a contract with a major publishing house. If you’re going to set yourself up as a gatekeeper, you have a responsibility for what goes through your gate"

Said Celeste Ng, a best-selling novelist, who says she'd protest if her publisher (Penguin Random House) was going to publish a Trump memoir — quoted in "A Trump Memoir Would Sell. Will Publishers Buy It?/Some publishing executives worry their authors and staff might rebel, but they say their bigger concern would be ensuring the book’s accuracy" (NYT). 

But Stephen King, who hates Trump, took the free-speech side: “Anything he wrote would be a pack of self-serving lies, but I believe in the freedom of people to read what they want, and I hate censorship... Let him publish, if he wants. I hope my publisher won’t be the one to do it, but in any case I can’t wait to see the critics take him apart.” 

Notice that the free-speech position denies your opponent the glow of victimhood and gets the speech out there where it can be attacked.

Anyway, obviously Trump will get his book published. The president of the conservative publisher Regnery is quoted saying,  'I’m hoping [the other publishers] will stand by their principles and not get involved... so we have a better chance of picking it up!" And everyone knows Trump could self-publish his book... like he self-publishes his tweets.