Gallup Poll: US President Donald Trump's approval rating slips to 37 percent

Marine One, with US President Donald Trump aboard, arrives on the South Lawn of the White House in Washington, DC, January 7, 2018, after spending the weekend at Camp David, the Presidential retreat in Maryland. (Photo by AFP)

US President Donald Trump's approval rating has dipped to 37 percent following a week of controversial allegations detailed in a new book about the New York billionaire.

Days after he took office last January, Trump's Gallup approval rating stood at 45 percent. It declined throughout 2017, save for a few instances when it rose, and closed the year at 39 percent.

The majority of recent polls have pegged Trump's approval rating in the 30s and low 40s.

The recent release of Michael Wolff’s book, “Fire and Fury: Inside the Trump White House,” has apparently hurt his approval ratings further.

The newly published best-seller provides a behind-the-scene look at Trump's White House and contains numerous allegations about the administration depicting him as a child who feeds off instant gratification.

Trump has lashed out at the blockbuster book calling it a “fake book” that has been written by a "totally discredited author."

The author is, meanwhile, defending his book vehemently despite the White House describing it as pure fantasy. Wolff has gone so far to say that his revelations will end the US president’s tenure.