On Tuesday, Repub­lican pres­i­den­tial can­di­date Mitt Romney won the Iowa cau­cuses by a grand total of eight votes over Rick San­torum, whose surging can­di­dacy over­shad­owed the former Mass­a­chu­setts governor’s slim vic­tory. We asked polit­ical sci­ence pro­fessor William Crotty, who spe­cial­izes in Amer­ican polit­ical par­ties and elec­tions, to ana­lyze the impli­ca­tions of the opening round of the GOP race for the White House.

From a his­tor­ical per­spec­tive, how impor­tant are the results of the Iowa cau­cuses in deter­mining the Repub­lican nom­i­na­tion for president?

The Iowa cau­cuses are a curious animal; there is no good argu­ment that I can think of to give Iowans the leadoff spot in the elec­tion year. The state is about as much of a rep­re­sen­ta­tive of the country as a whole as Idaho: Social con­ser­v­a­tives and Chris­tian fun­da­men­tal­ists dom­i­nate the make-​​up of Repub­lican caucus-​​voters, which is a point that is not often made clear.

His­tor­i­cally speaking, the Iowa results have a mediocre record in choosing even­tual Repub­lican nom­i­nees and a dismal record in choosing even­tual pres­i­den­tial win­ners. So the ques­tion is, “Why Iowa?” The answer is that cam­paigning in Iowa gives cred­i­bility to a can­di­date, strengthens fundraising and pro­vides enor­mously increased media attention.

How does Romney’s slim margin of vic­tory reflect his chances of win­ning the Repub­lican nom­i­na­tion? Has Rick Santorum’s surging can­di­dacy made him a viable alter­na­tive to Romney and a legit­i­mate can­di­date to beat Barack Obama?

Rick San­torum is arguably the most socially con­ser­v­a­tive of the can­di­dates, given his views on abor­tion, gay mar­riage and in-​​home schooling among other issues, but he nonethe­less achieved a remark­able vic­tory. He is not, how­ever, likely to be able to sus­tain his suc­cess, given his lim­ited orga­ni­za­tional capa­bil­i­ties, his meager fundraising, and the fact that he has not orga­nized exten­sively in other states. Fur­ther, he has gotten a pass in run­ning a grass­roots level retail cam­paign with little to no TV ads and fin­ishing in the polls at or near the bottom of the pack, until the run-​​up to his showing Tuesday. He has not received the intense vet­ting of other can­di­dates and he has not been the object of attacks by other can­di­dates to date.

I see the San­torum chal­lenge as the latest [man­i­fes­ta­tion of] anybody-​​but-​​Romney sen­ti­ment among Repub­li­cans. His close second-​​place finish is the best pos­sible out­come that Romney could have hoped for, but I do not see this empha­sized in the media. Romney’s showing, also unex­pected until about a week ago, is an enor­mous accom­plish­ment. Given the Iowa out­come and the fact that he is well ahead in New Hamp­shire, I believe Romney is assured of the nom­i­na­tion. Rick San­torum is not a serious alter­na­tive and the other can­di­dates have had their day in the sun and then essen­tially failed. I believe Romney thinks the same. His speech after the Iowa vote to sup­porters was totally aimed at Pres­i­dent Obama and the gen­eral elec­tion and raised the issues that he will use in the fall campaign.

The real chal­lenge to Romney would have come from Newt Gin­grich, if he could have over­come his past prob­lems and gotten him­self in a posi­tion to com­pete effec­tively. That’s why the Super Pac sup­porting Romney focused on Newt in a fierce neg­a­tive TV campaign.

Ron Paul received more than 21 per­cent of the caucus votes, owing largely to young sup­porters who showed up in droves to back the 76-​​year-​​old can­di­date. Will Paul be able to depend on young voters to keep him com­pet­i­tive in states such as New Hampshire?

Ron Paul is a dif­ferent type of can­di­date. As he him­self has said, he does not see him­self having break­fast in the White House. His vote and pat­terns of sup­port will be rel­a­tively con­sis­tent in the more con­ser­v­a­tive states and will con­tinue to appeal to lib­er­tarian ide­o­logues and the young and first-​​time voters. His sup­port in Iowa was con­cen­trated among the young, the less finan­cially well off, more independent-​​minded voters and first-​​timers in the cau­cuses. It’s a much dif­ferent pat­tern of voter sup­port com­pared to that of Romney, who did well among the older and more mod­erate Repub­li­cans opposed to the Tea Party, the higher-​​income groups, the college-​​educated and those who believe the economy and elec­tability are the most impor­tant considerations.

Paul is no threat for the nom­i­na­tion to any fron­trunner. His inten­tion appears to be to influ­ence Repub­lican Party thinking and its even­tual plat­form. Even then, there are ques­tions, given his views on issues, including his sup­port for the Pales­tinians, and his oppo­si­tion to the wars presently under way.