Sarah is of course correct. And how do we prevent the Romney nomination? I would suggest that it is within the power of Sarah and perhaps a few influential others (Sen. DeMint, Cain, Rush) to go all-in on an endorsement, before the South Carolina primary, for the one anti-Romney candidate who can beat Romney and 0 - Newt Gingrich.
Newt is a fighter and an inspiring leader who can rally the base to win in November. Neither Santorum or Perry comes close to Newt's combination of these essential qualities.