According to CNSNews:
In its latest poll, Pew surveyed on transgenderism views of a nationally representative panel of randomly selected 4,573 U.S. adults recruited from landline and cellphone random-digit-dial (RDD) surveys between Aug. 8 and Sept. 28, 2017.
A majority (54%) of all Americans said that whether a person is a man or a woman is determined by “the sex they were assigned at birth,” while 44% said “it can be different.”