Stanley Kurtz: On the evening of January 11, 1996, while Mitt Romney was in the final years of his run as the head of Bain Capital , Barack Obama formally joined the New Party, which was deeply hostile to the mainstream of the Democratic party and even to American capitalism. In 2008, candidate Obama deceived the American public about his potentially damaging tie to this third party. The issue remains as fresh as today’s headlines, as Romney argues that Obama is trying to move the United States toward European-style social democracy, which was precisely the New Party’s goal. In late October 2008, when I wrote here at National Review Online that Obama had been a member of the New Party, his campaign sharply denied it, calling my claim a “ crackpot smear .” Fight the Smears, an official Obama-campaign website, staunchly maintained that “Barack has been a member of only one political party, the Democratic Party.” I rebutted this, but the debate was never taken up by the m...