Question

What is the main criticism of campaigns for third party candidates in US elections?

Answer 1

The main criticism of campaigns for third party candidates in US elections is that they build platforms based on single issues

Most of third party candidates campaigns, for instance green party, are based on only one issue. The green party is only concern about environmental issues.

A third party is any party seeking for votes that failed to outpoll either of its two strongest rivals.

Answer 2

Many people dislike third party candidates because they stand for a single cause or issue. Instead of running to make the office that they are running for operate better or to serve their constituents better, some candidates only want to serve to bring their issues to the forefront on a public stage.