Votebeat:

The FBI said Thursday that it is investigating a series of suspicious mailings sent to election officials across the nation, an unusually widespread example of election workers being physically threatened during a highly charged midterm campaign.

Federal officials have been speaking with targeted leaders across the country as they work to get a handle on the scope of the apparent attack. Three election officials briefed on the evolving investigation said they were told more than 100 letters were sent to people and groups across the country. The list includes at least one U.S. senator and a polling organization.

Officials in Louisiana and Oklahoma said they received suspicious letters containing a powdery white substance. Ohio Secretary of State Frank LaRose and New Hampshire Secretary of State David Scanlan said that federal officials had intercepted similar letters bound for their offices. The FBI also informed the Connecticut secretary of state a letter had been intercepted. The local FBI field office confirmed it had “received multiple interceptions.”…