In 2008 Barack Obama raised more than $1 million from employees of Goldman Sachs for his presidential campaign. This year they have sent him only $45,000. Mitt Romney, however, has raised $350,000 from the company. The disparity is part of an overall trend in which Wall Street figures, frustrated with the Obama administration, have redirected their funds to Romney, who is courting them aggressively. And the gap could grow wider as Obama seeks to energize his base by harnessing the anger of Occupy Wall Street.