Phil
Gramm, in his third term as a Republican senator from Texas, had been a Democrat for most of his career in the House.

Light
To conserve energy, President Johnson urged Americans to turn out their lights when not in use. Republicans wanted to turn out Johnson in '64.

Uff Da
This Minnesota item comes in handy, having used it two puzzles in a row!

Bum
Anti-Nixon button, prior to Watergate.

Bill
Bradley was elected to three Senate terms from New Jersey before retiring in 1996.

B
Averell Harriman, defeated as governor of New York after one term by Nelson Rockefeller in 1958, appeared on the ballot on Row B.