"I had not seen him get this angry about a book since he finished 'The Monster at the End of This Book, '" Colbert said, referring to the popular children's book.
Of course, this isn't the first time he's talked about reforming libel laws.
The book set off a cascading string of events, part of which culminated with former Trump strategist Steve Bannon, who was widely quoted in the book, getting booted from his white nationalist perch at Breitbart.
And the timing of the president's overture likely isn't a coincidence.
US law does not empower the president to change the nation's libel laws.
He called the country's current laws "a sham and a disgrace", claiming that they "don't represent American values or American fairness".
President Donald Trump on Wednesday called for tougher libel laws, saying the current iteration is a "sham and a disgrace" as he addressed his Cabinet and reporters at the White House. "You can't say things that are false - knowingly false - and be able to smile as money pours into your bank account".
GETTY TURNING POINT Donald Trump's first physical exam could be a major event
Trump did not elaborate on how he might undertake the effort, but said simply, "We're going to take a very, very strong look at it".
Trump has a long litigious history in the business world, and that instinct came through last week when excerpts from Wolff's book first came out.
"Mr. Trump hereby demands that you immediately cease and desist from any further publication, release or dissemination of the book", the attorney, Charles J. Harder, wrote in a letter obtained by Fox News.
Trump has not followed up with any lawsuit.
Mr. Cohen also filed a separate suit in federal court against Fusion GPS, the research firm that prepared the dossier.
BuzzFeed responded to the defamation suit by saying "this is not the first time Trump's personal lawyer has attacked the free press, and we look forward to defending our First Amendment rights in court". He also lashed out at America's "broken" court system after a federal judge temporarily blocked his plan to revoke protection for undocumented immigrants who entered the USA illegally as children.