what does "the weight of informed opinion lies on the other side"mean?
The weight of informed opinion lies on the other side. Barefoot Sanders, who was the U.S. Attorney on the spot, thinks Johnson became President the moment Kennedy died. So does Robert Kennedy; so does Nicholas de B. Katzenbach, who followed Kennedy as the sixty-ninth Attorney General. Hubert H. Humphrey, whom Johnson chose as his own Vice President, declares emphatically, "A Vice President becomes President when there is no President. Later, when he takes the oath, he puts on the cloak of office. But that act is purely symbolic." Former President Eisenhower takes the strongest position of all. In the view of Eisenhower—who scorns the second oath—Johnson became Chief Executive the moment it was obvious that Kennedy was dying; that is, before Kemp Clark pronounced him dead. The former President believes that Johnson was entitled to sign legislation at any time after 12:30 Central Standard Time.