The phrase "call into question the validity" is correct and usable in written English.
You could use it to express that the validity of something is being challenged or doubted. For example, "The report called into question the validity of the results."
Didn't this challenge to the latest extension necessarily call into question the validity of the major rewriting of federal copyright law in 1976?
The hopeful patriotism of the 1950s disintegrated into disillusionment, and US actions in foreign wars began to call into question the validity of this American mythos.
"The popular media is very sceptical when it comes to the art world and its motives, so it is natural that they should call into question the validity of what I'm doing".
Indeed, the fact that such a career has so far been ignored by the Hall of Fame provides reason to call into question the validity of this automatic exemption for the Champions Tour.
Such counter-statements are meant to call into question the validity of movements advocating for police reform and racial justice.
On first glance, we may be tempted to infer that his choices at the end of his life call into question the validity of his life-long crusade for the right to die.
The prevalence of chlamydia and trichomonas appear similar in community-based general population surveys compared to so-called high-risk groups such as STI clinic attendees or FSWs, calling into question the validity of simple risk categorisation in this setting.
The double standard calls into question the validity of the charges made by anti-tax groups.
The scale of the first step was "calling into question the validity of the pilot as something to learn from".
Still, industry officials said the new findings called into question the validity of some research underlying the new federal standards.
Mary Bejarano, the lawyer for Father Ordonez, said the lengthy time that passed before the woman accused the priest called into question the validity of the charges.
