swing voter

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Noun1.swing voter - a voter who has no allegiance to any political party and whose unpredictable decisions can swing the outcome of an election one way or the other
elector, voter - a citizen who has a legal right to vote
References in periodicals archive ?
3million leaflets and send 300,000 letters to female swing voters.
Whilst this is theoretically possible, it would imply that almost all the swing voters have turned their backs on one party and have chosen another, and that all will choose the same party.
A* Biden was overwhelmingly viewed by our swing voters as being more truthful, garnering the favor of 72.