A section of the fraudulent letter, courtesy of Duval Supervisor of Elections Office
TAMPA, Fla. -- The FBI is joining an investigation into bogus letters sent to many Florida voters that raise questions about their eligibility to cast ballots.
Tampa FBI chief Steven E. Ibison said Wednesday the FBI will focus on letters received by voters in 18 counties in central and southwest Florida. State authorities have received reports of letters in at least 23 counties.
MORE: Supervisor of Elections warns of fraudulent letter
Jerry Holland, chairman for the Republican Part of Florida, is also among those who have received a bogus letter, according to press secretary Kristen McDonald, with the RPOF.
The letters claim to be from county supervisors of elections but were all postmarked from Seattle. They raise questions about the voter's citizenship and appear intended to intimidate people.
Ibison says voters who get a letter should first contact their local election supervisor to see if it's authentic. If not, voters should keep the letter and contact the FBI.
The Florida Department of Law Enforcement has also opened an investigation.