Question

An effect of third-party candidates, such as Theodore Roosevelt, on presidential elections is

they usually win the popular vote
they often help Republicans.
they often help Democrats.
they change outcomes of elections.

Answer 1

They can completely change the outcomes of the elections

Answer 2

An effect of third-party candidates, such as Theodore Roosevelt, on presidential elections is they change outcomes of elections. This had became the issue because of the change of the outcome of the elections and made a controversy througout the country.