“Prompted by what they call regulatory attacks on their business and personal attacks on their character, executives and employees of Goldman Sachs have largely abandoned Mr. Obama and are now the top sources of money to presidential candidate Mitt Romney and the Republican Party.

“In the four decades since Congress created the campaign-finance system, no company’s employees have switched sides so abruptly, moving from top supporters of one camp to the top of its rival, according to a Wall Street Journal analysis of campaign-finance data compiled by the nonpartisan Center for Responsive Politics.”