Biographer Robert Caro offered a different perspective; he wrote that the Kennedy campaign was desperate to win what was forecast to be a very close election against Richard Nixon and Henry Cabot Lodge Jr.. Johnson was needed on the ticket to help carry Texas and the Southern states. Caro's research showed that on July 14, John Kennedy started the process while Johnson was still asleep.
Richard Nixon and Henry Cabot Lodge Richard Nixon
Richard Nixon and Henry Cabot Lodge Richard Nixon