In his self-styled war against Wall Street, President Obama appears to have a powerful ally: Goldman Sachs. The nation's largest investment bank, famously cozy with top government officials in both parties, has tipped its hand to its shareholders, indicating that major financial "reform" proposals will help Goldman's bottom line. "Given that much of the financial contagion was fueled by uncertainty about counterparties' balance sheets," Goldman Chief Executive Officer Lloyd Blankfein and President Gary Cohn wrote in a letter at the beginning of the annual report, "we support measures that would require higher capital and liquidity levels, as well as the...