• Pipoca@lemmy.world
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    7 months ago

    The problem is mathematical.

    To win the presidential election, you need to win a majority of the vote in enough states to win a majority of electoral college votes.

    If no-one gets 270 electoral votes, then the House of Representatives meets. Each state delegation gets 1 vote. Right now, that means that the Republican wins, due to e.g. Wyoming and Alaska getting just as much of a vote as NY and California, and Republican gerrymandering of swing states.

    There’s literally no way for third party candidates to be elected president. The best that a third party has ever done was in 1860, a 4 way race between a Democrat, Republican, Southern Democrat, and Constitutional Unionist.

    Lincoln, the Republican, got 39.8% of the vote but won 18 states and 180 electoral votes. The Democrat, Douglass, got 29.5% of the vote but only won a single state. Breckenridge got only 18.1% of the vote but carried most of the southern states. And Bell got 12.6% of the vote and carried 3 states - Virginia, Kentucky and Tennessee.

    So Douglas ended up with more than twice as many actual votes as Bell, but got over 3x the electoral vote. And Breckenridge only got less than half as many electoral college votes that he’d need to win, and could realistically have only picked up Bell’s.

    The last time a third party candidate won a single electoral college vote was in 1968, when George Wallace won Georgia, Alabama, Mississippi, Arkansas and Louisiana. He was the former governor of Alabama, and had left the Democratic party after the 1964 civil rights law and 1965 voting rights law were passed by Johnson.

    The Democrats are also more of a big tent than most parties in counties using party list PR would be. In Italy, AOC and Manchin wouldn’t be in the same party, while in the US they basically have to be to win.

    The two party system exists for structural reasons. Plurality only works well in two candidate elections; third parties only do well in districts where they functionally replace a major party. Getting rid of the two party system is possible by changing the structure - switching to e.g. STAR voting in the senate and presidency and using e.g. MMP or STV in the House. But burying your head in the sand to pretend the structural issues don’t exist just doesn’t work.