TIME cover: 05-20-1991 on the Five who could be Vice President. On cover:(clockwise fr. lower L): Carroll Campbell, Dick Cheney, Nancy Kassebaum, Pete Wilson and Colin Powell. Computer altered State of the Union photo by Diana Walker. Inset heads (clockwise from lower L): Carroll Campbell by Diana Walker; Dick Cheney by Jacques Witt-Sipa; Nancy Kassenbaum by Ann States-SABA; Pete Wilson by Ed Andersen; Colin Powell by Robert Trippett-Sipa.