KARLA MURTHY:

Anlin Wang and Sadiq Khan had never met before, but they are trying to solve each other's dilemmas by using a strategy called vote swapping.

Here's how it works. On one side, you have a voter in a closely fought battleground state like Pennsylvania who supports a third party candidate — in this case Green Party candidate Jill Stein. On the other side, you have a voter in a "safe" state… like New Jersey who supports Hillary Clinton. They then persuade each other to vote for their preferred candidate… essentially swapping their votes.

A handful of vote swapping websites, apps, and Facebook groups have sprung up this election year connecting voters from all over the country.

Sadiq Khan read about a vote trading app called #NeverTrump. He downloaded it onto his phone and joined a message group.