From First-Past-The-Post to the Two Party System by Henry Mantel

George Washington hated political parties. In his farewell address in 1796, Washington warned that powerful political parties could obstruct the execution of the law and subvert the will of the majority. George Washington was the last non-partisan president.

Two major political parties had formed almost as soon as the Revolutionary War ended. The Federalist Party, led by Alexander Hamilton, wanted a stronger federal government. The Democratic-Republican Party, formed by Thomas Jefferson and James Madison, pushed for greater state autonomy. Today, "big government" Democrats war against "states' rights" Republicans.

With few exceptions, two parties have always dominated American politics. Third parties have always existed, yet they have rarely succeeded in gaining any power. My favorite example is the Bull Moose Party, started by Theodore Roosevelt in 1912 just so he could run for president after he lost the Republican nomination to President Taft. Roosevelt was so popular he ended up winning 27.4% of the popular vote while Taft received only 23.2%, making this the only time a third party presidential nominee has won a greater share of the popular vote than a major party's nominee.

The two party system is the inevitable outcome of how we vote. Until recently, essentially every election in the country used a voting method called first-past-the-post (FPTP). Under FPTP, everyone gets one vote and the candidate that receives the most votes wins, even if that candidate only receives a plurality instead of a majority of the votes. The benefits of FPTP are that it is easier for voters to understand and for the ballots to be counted.

But what happens when a voter prefers a candidate that they know has no chance of winning? Voting for the preferred candidate could mean victory for a candidate that the voter thinks is the worst option. Should the voter throw their support behind their favorite candidate, even if it means increasing the chances of the worst candidate winning? Or should they vote for the candidate they are are less enthused about but actually has a shot at winning?

This is called the spoiler effect. This is why it often feels like voters are forced to choose between the lesser of two evils. Most people do not want to support a candidate that has no hope of winning if it means helping the worst option win, so they vote for the candidate with the best chance of winning instead of their favorite. After a few elections, disregarding the occasional insurrection, two dominant parties will form. Compounded over thousands of elections, the spoiler effect has cemented the two major political parties in power.

There are other options. One particular option that has been gaining momentum is called Instant-Runoff Voting (IRV) or Ranked-Choice Voting. With IRV, every voter ranks the candidates in order of preference. If their first choice receives the fewest amount of votes and no candidate receives a majority, then their vote goes to their second choice. This repeats until a candidate has received a majority.

IRV has already been implemented in cities across the United States. Maine became the first state to adopt IRV for the elections of its governor, members of congress, and the state legislature in 2016. The 9th Circuit Court of Appeals ruled San Francisco's IRV system constitutional in 2011.

While IRV is not perfect, it eliminates the spoiler effect and allows every voter to vote for their favorite candidate. IRV also ensures that every candidate that wins will at least be preferred by a majority of voters. If IRV were implemented nationwide, America might be able to move past the two party system.

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