A una semana del Caucus de Iowa

First Read:

*** One week to go: Here’s where things stand in the GOP presidential race after the Christmas holiday and exactly one week until the Iowa caucuses: Mitt Romney remains the overall on-again/off-again front-runner, yet he’s vulnerable in Iowa if -- and it’s a big IF -- conservatives coalesce around one anti-Romney candidate. (“I don’t see any scenario where we’re not the nominee,” a senior Romney strategist told New York magazine.)… Newt Gingrich’s stock as the Romney alternative has nosedived, especially after his campaign was unable to get on Virginia’s ballot (the consequences of which we explain below)… Last week, Ron Paul emerged as the new Iowa front-runner, but racially charged newsletters bearing his name that appeared decades ago have recently dogged his campaign. (Don’t miss this New York Times headline from yesterday: “Paul Disowns Extremists’ Views but Doesn’t Disavow the Support.”)… And the latest Republican who appears to gaining momentum in Iowa is Rick Santorum.