Bandwagon

From Tardis Wiki, the free Doctor Who reference
Bandwagon

The Master, disguised as British Prime Minister "Harold Saxon", accused the members of his cabinet as having abandoned their political parties to jump on "the Saxon bandwagon". (TV: The Sound of Drums)

The Kaplan Minus rode to power on Astra with the Kaplan's bandwagon in the election of 2061. (PROSE: Kaplan Assassinated!)