WATCH: Trump slams Biden’s SCOTUS nominee at Georgia rally

"The left has become so extreme that we now have a justice being nominated to the Supreme Court who testified under oath that she could not say what a woman is," Trump stated Saturday, then questioning: "If she can't even say what a woman is, how on Earth can she be trusted to say what the Constitution is?"

"A party that's unwilling to admit that men and women are biologically different in defiance of all scientific and human history is a party that should not be anywhere near the levers of power in the United States of America," Trump told the crowd.

Jackson said, "No, I can't," when promoted to provide a definition of the word "woman." She further explained, "Not in this context. I'm not a biologist."

"Say what you want, but Judge Jackson was unbelievably disrespectful to Republican senators..." Trump continued during Saturday's speech.

During the evening rally, Trump also said former Sen. David Perdue will "save Georgia," praising the GOP gubernatorial candidate he's supporting in an attempt to unseat incumbent Republican Gov. Brian Kemp of Georgia.

"Before we can defeat the Democrat socialists and communists, which is exactly what we're running against at the ballot box this fall, we first have to defeat the RINO sellouts and the losers in the primaries this spring," Trump declared.

Trump also backed ex-football legend Herschel Walker, who is the current clear frontrunner among Republicans in the state's GOP Senate primary.