Right there she lets the cat out of the bag for anyone without their eyes glazed over and ears full of wax. She correctly states it "originally" meant classic liberal at the time of the founding.
Who perverted it's meaning? The left. When it became toxically associated with the left, they co-opted a new term. Progressive. Nothing about progress in their meaning unless you consider the steady onward march to totalitarian authority as being such. Call it whatever you want. It's truest identity is Marx.
These cretins even redefine what the meaning of “is” is. Anything to twist the word game in their favor. And the public sleeps on!