It resembles the Epimenides paradox which was named after the Cretan philosopher Epimenides of Knossos (fl. 600 BC), who was credited with first uttering the apothegm “All Cretans are liars”
https://en.wikipedia.org/wiki/Epimenides_paradoxThe fact that Epimenides himself was widely known to be a Cretan raised a logical paradox of self-reference that arises when one considers whether it is possible for Epimenides to have spoken the truth ?
Thomas Fowler (1869) states the paradox as follows: "Epimenides the Cretan says, 'that all the Cretans are liars,' but Epimenides is himself a Cretan; therefore he is himself a liar. But if he is a liar, what he says is untrue, and consequently, the Cretans are veracious; but Epimenides is a Cretan, and therefore what he says is true; saying the Cretans are liars, Epimenides is himself a liar, and what he says is untrue. Thus we may go on alternately proving that Epimenides and the Cretans are truthful and untruthful."
The original lie of the Cretans according to a poem by Epimenides was that of denying the immortality of Zeus himself.
The Greek poet Callimachus (310 - 240 BC) who came from Cyrene in Libya also echoed the same sentiment “Cretans are always liars” in his Hymn to Zeus a number of centuries later.
Sidney Powell’s claim that "No reasonable person would treat her arguments as statements of fact” raises the interesting question of whether she is impugning her own rationality, or that of her audience - Or both.
For those who would like a deeper dive into Powell’s motion of dismissal:
https://www.youtube.com/watch?v=iETwWNociM8&t=30s