Lexicon of Politics

Kangaroo Ticket n. a political ticket, as for the offices of president and vice president, where the principal candidate is less appealing to voters than the running mate.

1971 New York Times (Oct. 23), in Safire Pol. Dict. (1978 ed.):
[John Connally would run for vice president if asked by President Nixon, but] he would insist that the Nixon-Connally partnership be advertised as a "kangaroo ticket."