New Hampshire Public Radio: Jon Greenberg

In this presidential cycle, as in the last, there is no question which Republican candidate has the most ardent supporters: Ron Paul, the 76-year-old Texas congressman whose brand of libertarianism often puts him at odds with all of his rivals. But with less than seven weeks to go for the nation's first primary, there are signs that Paul could surprise people.

Former Massachusetts Gov. Mitt Romney is sitting pretty in New Hampshire, where he has been the front-runner all year, so whoever comes in second in the Granite State isn't doing too shabbily.

Texas governor Rick Perry spent the last two days in New Hampshire, his first visit since the Republican debate in which he defended a Texas law that allows illegal immigrants to pay in-state tuition at state colleges. As Jon Greenberg reports, Perry faced headwinds among Republican primary voters.