Dr. LESTER SPENCE (Department of Political Science, Johns Hopkins University): Cold chilling.

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Gibbs Knotts, chairman of the political science department at the College of Charleston, said it's not an insurmountable problem if Sanford can stick to his small-government talking points and appeal to the GOP base.

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Ms. Warren's rival was seeking to "throw a little more gasoline" on the issue, said Maurice Cunningham, chairman of the political-science department at the University of Massachusetts Boston.

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The results are a mixture of typical midterm protest and "rage against the machine, " said Tony Travers, director of the government department at the London School of Economics and Political Science.

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But even with the outcome of the nomination all but certain, South Dakotans feel that Tuesday's primary has put them on the political map, says Bob Burns, head of the political science department at South Dakota State University.

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Haesook Chae is an assistant professor in the political science department of Baldwin- Wallace College in Ohio.

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"The real trick for Dewhurst is to get Leppert voters to turn out in the runoff, " said Mark Jones, chairman of the political-science department at Rice University in Houston.

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Mr. Pavlich is chairman of the history and political science department at Southern Oregon University.

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"If you think about what these ads are trying to do, they are trying to convince that 7% in the 20% of states that matter, " said John Geer, chairman of Vanderbilt University's political science department.

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