Alex Padilla

The FBI ‌and ​US Postal Service's law enforcement arm said on Thursday they were investigating suspicious mailings, including some sent to state election officials and lawmakers' offices ahead of the November 3 midterm elections. The FBI said some of the letters contained an unknown substance. A ‌spokesperson for Senator Alex Padilla, a California Democrat, said his office received a notification from the FBI that the US Postal Service intercepted a letter containing a suspicious substance mailed to one of Padilla's offices. Brendan Donahue, a deputy chief inspector with the US Postal Inspection Service, said some of the letters had been intercepted and that an investigation ‌was ongoing. "We are committed to protecting our nation's election officials from threatening and dangerous mail. Any threat or attack on an election official is unacceptable," Donahue ‌told reporters. The National Association of Secretaries of State and the National Association of State Election Directors said la...