"People say 'why did they talk to him on the record?' They were told to", said Wallace, calling it a "tremendous miscalculation".
Trump claimed that the subject of collusion with Russia was "dead" and after a year of investigation and there was "absolutely no collusion". "But it certainly was not off the record".
Sanders spoke on "Fox and Friends" Friday amid the fallout from an explosive new book that extensively quotes Bannon making disparaging comments about Trump's family.
One chapter details a conversation between Trump and his wife Melania regarding the publication of outtakes from a nude photo shoot she had done early in her modelling career.
"The book is clearly going to be sold in the bargain fiction section", fumed the first lady's Communications Director Stephanie Grisham.
He added: "Even more to the point".
At least a dozen members of the US Congress, most of them Democrats, were briefed by a Yale University professor of psychiatry on President Donald Trump's mental health, US media reported Thursday. "I said Brexit. He repeated "what?"
"He doesn't read, he doesn't listen, he's profoundly uncurious".
The White House has said the book is riddled with errors, and campaign and administration officials have disputed events depicted in the book. He also says he never spoke with the book's author. "Now it's the same three stories in every 10 minutes".
In his tweet, Trump also targeted his one-time pal Steve Bannon - he called him "sloppy" - whom he unceremoniously dumped from his position as White House strategist in August, almost exactly a year after hiring him.
White House aides have depicted the book as a work of fiction.
Trump plans to undergo a physical exam by a government doctor on Jan. 12 that will be followed by a public statement by the doctor, the White House has said. "He wasn't known as Sloppy Steve Bannon; you named him that yesterday". Instead, the publisher moved up the release four days to Friday due to "overwhelming demand".
The letters didn't stop the book, however.
He lashed out again in a tweet this morning, referring to "this phony book". "Even if you thought that this was not treasonous, or unpatriotic, or bad shit, and I happen to think it's all of that, you should have called the FBI immediately".