Super Tuesday is a big day in American politics. Once every four years, party faithfuls in multiple states across the US choose who (from their party) they want to run for the presidency in November. This year, Republicans overwhelmingly chose Donald Trump. And Biden looks like he will seal his victory in the Democratic race. But why are the Republicans and Democrats the only two American parties most people have heard of? And could a third party ever break through. This video from Vox explains why American elections only ever give voters two real choices.
Why is the US facing a Trump/Biden rematch?
