Zero-bama has nothing else to make himself an attractive candidate - so he continues to demonize Romney - the rich dude.
If our economy were to grow, and people were once again fully employed and working at their experience level, Zero would have an impossible time villainizing those who have worked to become successful and attain what used to be called the American Dream.
The progressive dream of Socialism/Marxism, from each according to his ability, to each according to his need... cannot grow if our economy was once again strong. Remember never waste a crisis... Zero needs us to be in crises and envy.