logroll
/ˈlɔɡrɔl/Definitions
1. noun
A turn or round of voting in which each voter supports the candidate who will come last in the election, typically in a multi-round election.
“The logroll system was used in the early days of the electoral college to ensure that smaller states had a voice in the presidential election process.”
2. verb
To engage in a logroll, especially in politics, by supporting a weaker candidate in exchange for support from another candidate in a subsequent round.
“The two politicians logrolled each other in the election, each supporting the other’s weaker candidate in order to strengthen their own chances of winning.”