Investors are getting rich by exploiting the poorly guarded corridors of power in Washington. They are extracting insider tips about companies, winning sneak peeks at market data and tapping privileged insiders such as lobbyists to make huge trading profits at the expense of average investors. In a powerful series of investigations, The Wall Street Journal in 2013 exposed how investors have wormed their way into the political and regulatory system. A reporting team picked from among its best staffers in Washington and New York examined secret trading records, thousands of pages of disclosure forms and gigabytes of complex financial data. Their reporting showed how the nation's capital is awash in insider information. It exposed potential criminality. It upended long-standing practices in both cities. And it showed how insiders relentlessly exploit their connections.