Some people have expressed concerns the book is propaganda meant to slander the president, Phillips said, but he expects it to be one of their best sellers.
The bookstore was keeping a tally of all the calls they had received asking for the book.
They also have separate bedrooms at the White House, the explosive tell-all claims.
"Full of lies, misrepresentations and sources that don't exist".
Wolff has said that the White House's response to his reporting simply proves him correct. "I wasn't gonna buy the book. Light in fact-checking and copy-editing", she tweeted. "I have no reason to question his mental fitness", Tillerson told CNN when asked about the contents of the book.
Both declined comment to the publication.
Journalist Wolff, no stranger to controversy, quotes several key Trump aides expressing doubt about Trump's ability to lead the world's largest economy and military hegemon. "I am certainly and absolutely in every way comfortable with what I have reported", he added.
"Actually there's a competition to sort of get to the bottom line here of who this man is". "This is extraordinary, that the president of the United States would try to stop the publication of a book".
Wolff also says Mr Trump, 71, did not want to win the 2016 presidential election because losing would offer a far more powerful brand and untold opportunities. But that doesn't mean that a majority of people believe him.
The new fissure in an already fractious Republican Party cast doubt on Bannon's hopes to foment a movement centered on "Trumpism without Trump". Instead, it began sales early.
Bannon had earlier participated in an interview with Vanity Fair in which he was highly critical of Kushner, laying blame on him for the Russia investigation.
Lawyers for Trump had called on the book's publisher, Henry Holt & Co, to halt the book's release, originally scheduled for Tuesday. He never discussed this book with the president.
An employee at Beers Books in downtown Sacramento described the interest for a single book as "unprecedented". Wolff has confirmed he has audio recordings of some of those talks. Some lines in some areas of the country went around the block.