"Much of what I saw, I drew. But much of what I felt, I could not actually draw. My hope is that the drawings here express the giddy gravitas of the moment."
At The New Yorker, by Liza Donnelly.
She's done some other live-drawing, but she did not do the Republican conventions. Based on the other things she's live-blogged and her style, I think the RNC didn't suit her because she has a light-hearted, sweet approach and (I'm assuming) she doesn't have the relevant feelings toward the Republicans.
Back in 2010, she did a TED talk on the power of cartoons, and the page at The New Yorker with that video has a cartoon of hers showing 2 little girls — they look about 8 years old — and one says to the other "I can't decide what I'm going to be when I grow up — a good girl or a slut."