Pros and cons of Pawlenty for V.P.

Speculation is running high about who Mitt Romney will choose for a vice presidential running mate. The probable Republican presidential nominee has been tight-lipped about who he's considering. But political observers and analysts are watching closely for clues.

Among the names being tossed around: Former Minnesota Gov. Tim Pawlenty. Pawlenty initially denied he was interested in the job, but has softened on that position since, and has become a highly visible part of Romney's campaign. The former governor joined Romney on a bus tour over the weekend.

MPR's Cathy Wurzer spoke with Joel Goldstein, a professor at St. Louis University School of Law, and an expert on the vice presidency. He's the author of "The Modern American Vice Presidency: The Transformation of a Political Institution."

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