NEW : Twitter e-mails members of Congress about account security . Comment: On Tuesday he had a heated exchange with reporters . Breitbart , who has been involved in questionable tactics against Democrats and liberals in the past , told CNN on Tuesday that the case warrants further investigation . ` A conservative blogger who broke the story wants an investigation .
NEW : Twitter e-mails members of Congress about account security . Comment: On Tuesday he had a heated exchange with reporters . A conservative blogger who broke the story wants an investigation .