Watch Cain sing another tune from the campaign trail after the jump:
He also broke into song on the campaign trail over the weekend in Tennessee, belting out "Dream the Impossible Dream" from "Man of La Mancha," the musical adaptation of Miguel de Cervantes' classic, Don Quixote.
Cain, once written off as a dark-horse candidate tilting at windmills when he announced his candidacy this spring, is the current front-runner according to national opinion polls.
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