3 ms·

IRV has nearly the same effect as FPTP on the two-party system. Sorry, I don't know if this is a good link: https://electionscience.org/library/irv-degrades-to

• dane-pgp 5y ago
  Even if IRV keeps the same two parties in power forever, there is still scope for it vastly improving politics by improving the platforms of those parties. For example, if large numbers of Democrat voters decided it was safe to vote Green and put the Democrats as their second choice, the Democrats would quickly start to adopt more Green policies for fear that the two-party system kicks them out and the Greens become the major left-wing party. As another example, if the Democrats were confident that there are more voters out there who are moderates than far-left voters, they could confidently oppose some far-left policies while knowing that they would still be the second-preference of far-left voters. That would allow them to appeal to more GOP voters and avoid being associated with fringe policies, while also expanding the Overton Window.