She has a long history of being a complete moron, including thinking Canada supported the US in Vietnam, claiming that Jews want to be "perfected", and storming out of an interview when she doesn't get her way.
I have yet to read any of her books (and for good reason, I would rather my brain not spontaneously combust), but this excerpt from her book Godless: The Church of Liberalism, is enough to prove that it's complete drivel. This is her take on the theory of evolution:
"Throw in enough words like imagine, perhaps, and might have -- and you've got yourself a scientific theory! How about this: Imagine a giant raccoon passed gas and perhaps the resulting gas might have created the vast variety of life we see on Earth. And if you don't accept the giant raccoon flatulence theory for the origin of life, you must be a fundamentalist Christian nut who believes the Earth is flat. That's basically how the argument for evolution goes."
No, Ann. That's basically how the argument for creationism goes. There is no definitive proof of a creator, much less of the Christian god; no proof of instantaneous creation of even a speck of dust, much less all the matter and energy in the universe; and no proof that any of the Biblical tale of creation is true. We are left to imagine that God exists, and decided on a whim that perhaps he should create a vast, mostly empty universe to house his most important creation - mankind - on a rock in the middle of galactic nowhere, and he might have done it by sneezing into a mud puddle.
While there are uncertainties in how life began (that's abiogenesis, Ann, not evolution), the theory of evolution is not just some story scientists came up with one day over tea and crumpets. It's the end product of two centuries (and indeed, even longer) of scientific work. Sure, there are things we don't know yet, but there is no imagining involved. We are lead to evolution by considering the evidence, and what the evidence presents to us factual.
I would imagine that perhaps Coulter should shut her skeletal maw, because she's so dense, her brain might have become a singularity. That's much more plausible than creationism, anyway.