NYT:

 In an election year shaped by voter anger toward the political establishment, the outcome of an unusually large number of close Senate and governor’s races could be determined by the outsize role of third-party candidates.

The potential spoilers include a quixotic former three-term senator, a pizza delivery man and an Alaskan whose name, Fish, summons a favored native food. They represent independents, Libertarians and other parties that have suddenly become relevant — and could affect the balance of power in Congress and decide who runs the governor’s offices in several states.