In July 2018, Democratic Senator Claire McCaskill alleged that Russian hackers unsuccessfully attempted to break into her Senate email account.[138] The following month, NPR reported that Democratic Senator Jeanne Shaheen from New Hampshire reported to the FBI several attempts to compromise her campaign[139] including both spearphishing attempts on her staff and a disturbing incident where someone called her offices "impersonating a Latvian official, trying to set up a meeting to talk [about] Russian sanctions and about Ukraine". Her opposition to Russian aggression and support of sanctions had placed her on an official Russian blacklist.[140] On August 8, 2018, U.S. Senator Bill Nelson from Florida told the Tampa Bay Times that Russian operatives had penetrated some of Florida's election systems,[141] though he was criticized by The Washington Post's Fact Checker for providing no evidence of Russian hacking.[142] In 2019, Special Counsel Robert Mueller's investigation on Russian interference in the 2016 election concluded "at least one Florida county" was successfully penetrated, and Governor Ron DeSantis said voter databases in two counties had been successfully penetrated.[143][144]