What impact, if any, do third parties typically have on u. s. elections?

Third-parties can change the national attention to a certain issue. They can take votes away from major political parties candidates, causing it to influence the outcome of elections. NOTE THAT THIRD PARTIES HARDLY EVER WIN ELECTIONS IN THE AMERICAN CAMPAIGNS.

The  ancient egyptians  who  built the pyramids  may have been  able  to move massive stone blocks across the desert by wetting the sand in front of a contraption  built  to pull the heavy objects