Why do people think Newt's done?

[hotpprs]

Newt got a short bump in South Carolina thanks to ABC news.
South Carolinians voted against the press thanks to the very unethical interview with his ex-wife, and opening up with that question at the debate. Also because of the way he handled Juan Williams questions which I thought were off base because they were leading questions.
Beyond that, he has not won any other states and hasn't fared even close behind.
He has zero chance of getting enough women and minority votes to win in the general election. The GOP power brokers have to know that. He can't just win by sweeping the South in the general election, not even saying that he could do that.
If he really hates Romney the way he says he does, and really just wants a conservative to be on the ticket, he should drop out now before Romney gains any steam and starts taking winner take all states.