The US public is evenly divided on whether or not Trump is mentally stable, with 48 percent saying his is, and 47 percent saying he’s not.
Just 36 percent of Americans approve of Trump’s job performance, while 58 percent disapprove, essentially unchanged since the summer.
Women are especially critical of Trump in this poll. Only 29 percent approve of his work, compared to 44 percent of men. And a remarkable 55 percent of women doubt Trump’s mental stability.
The poll comes amid growing concerns about Trump’s mental health following the publication of a book that focuses on his first year in office.
Doubts about Trump's mental fitness come in the wake of a chaotic picture painted by Michael Wolff's new book, "Fire and Fury: Inside the Trump White House."
The book sheds light on concerns among top White House advisers about Trump’s psychological fitness to lead the nation.
In early December, Yale psychiatrist Dr. Bandy X. Lee gave a presentation to a dozen lawmakers on Capitol Hill, warning that Trump posed a "public health risk" by being in office.
Trump ends his first year in office with an approval rating that is the lowest in modern polling for a president at this point in a term. Indeed just six of the past 12 presidents ever went as low or lower in approval as Trump is now.
A separate poll released Saturday by NBC News/Wall Street Journal found that 51 percent of respondents now say they strongly disapprove of Trump, which is a record high for Trump in the survey.