Trump signs executive order to ‘protect children from chemical and surgical mutilation’

That was my first thought as well, but the details cover that. See section 2c:

(c) The phrase “chemical and surgical mutilation” means the use of puberty blockers, including GnRH agonists and other interventions, to delay the onset or progression of normally timed puberty in an individual who does not identify as his or her sex; the use of sex hormones, such as androgen blockers, estrogen, progesterone, or testosterone, to align an individual’s physical appearance with an identity that differs from his or her sex; and surgical procedures that attempt to transform an individual’s physical appearance to align with an identity that differs from his or her sex or that attempt to alter or remove an individual’s sexual organs to minimize or destroy their natural biological functions. This phrase sometimes is referred to as “gender affirming care.”

It also calls WPATH's finding "junk science" without offering evidence to the contrary, which has all the rhetorical weight of a 6-year-old shouting "NUH UHH!!"