State election officials were left unnerved after being summoned by the FBI to a mysterious conference to discuss “preparations” for this year’s midterm elections, which President Donald Trump has recently called for Republicans to “nationalize” in violation of the Constitution.

On Tuesday, election officials in all 50 states received an email from Kellie M. Hardiman, who identified herself as an “FBI Election Executive.”

Hardiman said the officials were invited to a call on February 25 with “your election partners” at the FBI, the Department of Justice (DOJ), the Department of Homeland Security (DHS), the US Postal Inspection Service (USPIS), and the Election Assistance Commission (EAC).