(CNN) — A robocall that used an AI voice resembling President Joe Biden’s to advise New Hampshire voters against voting in the state’s presidential primary has been linked to a pair of Texas-based telecommunications companies, the state’s attorney general announced on Tuesday. New Hampshire Attorney General John Formella, in a news conference on Tuesday, said the source of the calls were linked to two businesses: Life Corporation and Lingo Telecom. Formella identified Walter Monk as