Four years ago, Mitt Romney was done in when he ended up fighting a multi-front battle against different opponents. This year, it has been his lucky fate to escape any real battles from any specific opponent. That will soon change. Romney’s 2008 strategy, built on the assumption that someone not nationally known could take the nomination only by winning early and often, was based on some sound assumptions. What he didn’t anticipate was how the campaign would unfold against him.