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The Clinton Foundation is operating a $20 million private equity firm in Colombia, raising concerns from government and consumer watchdog groups who say the practice is unusual and could pose a significant conflict of interest.

The line between the firm and the Clinton’s nonprofit world is hazy. Fondo Acceso is run out of the Clinton Foundation’s Bogota office and staffed by foundation employees, a representative at the office told the Washington Free Beacon on Tuesday.

A charitable foundation running a private equity fund is “not something one hears about commonly” and is “very concerning,” according to Craig Holman, the government affairs lobbyist at the watchdog group Public Citizen.

Ken Boehm, chairman of the National Legal and Policy Center, a government watchdog group, said the lack of transparency was a troubling. He said the public has a right to know whether any of Fondo Acceso’s companies received U.S. government support while Hillary Clinton was secretary of state.