Jeb Bush Tries to Turn Up the Heat in Republican Presidential Race in Iowa

At 62 years old, Jeb Bush is still willing to test his fastball. While gripping a baseball at the Iowa State Fair, the former Florida governor announced a goal of 50 mph. As he whizzed the ball through a canyon of inflated prizes, the radar gun spoke the truth: 44 mph. He tried again: 47.

Whether Mr. Bush can bring the heat to his Republican presidential campaign is a nagging question that now hangs over his candidacy. In Iowa, recent polls sh