Fans of GOP presidential candidate Ron Paul show their support outside the Mesa Arts Center before Wednesday night's Republican debate in Mesa, Ariz. Ethan Miller/Getty Images hide caption

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Ethan Miller/Getty Images

Ron Paul Fans Stay Committed After Colorado

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Rep. Ron Paul, R-Texas, during Thursday night's Republican presidential debate in Jacksonville, Fla. Paul J. Richards/AFP/Getty Images hide caption

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Paul J. Richards/AFP/Getty Images

U.S. Rep. Ron Paul, shown at a campaign stop in South Carolina, spoke with NPR's All Things Considered today about the upcoming primaries, the possibility of a third-party run, taxes and other issues. John W. Adkisson/Getty Images hide caption

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John W. Adkisson/Getty Images

Ron Paul: Steadily, 'Our Numbers Are Growing'

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Ron Paul greets supporters in Meredith, N.H., on Sunday, two days before he placed second in the state's Republican primary. Stephan Savoia/Associated Press hide caption

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Stephan Savoia/Associated Press

The Ron Paul Paradox: GOP Questions His Impact

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Mitt Romney speaks to supporters at Southern New Hampshire University in Manchester, N.H., after winning the state's primary on Tuesday. Win McNamee/Getty Images hide caption

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Ron Mirsky, 54, a customer at Me & Ollie's Cafe in Exeter, N.H. — the town where Ron Paul announced his run for president — says Paul has interesting ideas. John Winslow Poole/NPR hide caption

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John Winslow Poole/NPR

Ron Paul spoke to a packed house at the Knapp Learning Center during his "Salute to the Military" event in Des Moines, Iowa, on Wednesday. Becky Lettenberger/NPR hide caption

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Becky Lettenberger/NPR

Rep. Ron Paul, R-Texas, greets 3-month-old Heidi Lange during a campaign stop in Dubuque, Iowa, on Thursday. Charlie Riedel/AP hide caption

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Charlie Riedel/AP

Ron Paul Has Support In Iowa, But Old Issues Linger

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