Probe is connected to a leak of a federal funding decision that appeared to affect stock trading.
The 'political intelligence' industry is under growing scrutiny amid a federal inquiry into trading activity.
Firms hire armies of consultants to scour Washington for information that could influence the financial markets.
Greenberg Traurig grapples with problem common to DC firms: how much information is too much?
Federal investigators and a senator are looking into the alleged leak of a key Medicare funding decision.
More than 400 federal workers had notice of the funding decision two weeks before it was made public.
The pipeline of information from Washington to Wall Street included Obama administration officials.
Some members of Congress are renewing efforts to get disclosure rules for the political intelligence industry back on the table.
A conference call with a staffer for Sen. Orrin Hatch shows that D.C. firms aren't investors' only source.
Eric F. Billings, one third of the founding team of FBR Capital Markets, discusses his departure from the firm and thoughts on the state of Washington's financial sector.