A conservative watchdog group served a court-authorized subpoena on Google to compel the company to hand over all the emails from a Google account, which may contain thousands of Hillary Clinton’s emails.

Judicial Watch, a conservative-leaning, D.C.-based watchdog group, announced this week that it had served a subpoena against the Silicon Valley tech firm as part of its Freedom of Information Act court battle seeking all of Clinton’s emails from her time as secretary of state, including the tens of thousands that were deleted from her private email server.