One of Washington's most prominent lobbying firms is on the verge of shuttering after becoming ensnared by special counsel Robert Mueller's investigation. Kimberley Fritts, the chief executive of the Podesta Group, told employees during a Thursday staff meeting that the firm would cease to exist at the end of the year, according to two sources. Employees were asked to clear out their desks and were told they may not be paid beyond November 15, multiple sources said.