Political experts all agreed over the summer that Newt Gingrich’s candidacy was done. But Gingrich never got the message. In a volatile election cycle, Gingrich has battled his way back into contention, rising to third place in several national and state polls on the force of his ideas and breadth of knowledge of how Washington does and does not work. After nationally televised debates and local town halls, Gingrich has made voters want to give him a second look, especially after he speaks emphatically about American Exceptionalism and about bureaucrats and unelected judges who threaten to undermine it. His fundraising,...