Final answer:
Third-party candidacies, like Ralph Nader's in the 2000 election, had a notable impact on the election outcome, particularly in Florida. If all third-party votes had gone to Al Gore, his percentage would have increased, potentially affecting the overall result of the election.
Step-by-step explanation:
The possible effect of third-party candidacies on the 2000 election:
Ralph Nader's and other third-party candidacies had a significant impact on the 2000 election, particularly in Florida. If all third-party votes had gone to Al Gore, his percentage would have increased, potentially giving him the victory in the state and changing the overall outcome of the election.
Evidence suggests that many of Nader's supporters would have otherwise voted for Gore, as Nader's platform was aligned with progressive and environmental causes that resonated with Democratic voters.