Evidence from the United States shows that the gerrymandering of district boundaries is not necessarily a cause of political polarisation

In the United States, boundaries for the House of Representatives and many states are decided by the membership themselves rather than an independent commission (as is the case in the UK and many other European democracies). Reformers in the United States argue that the commission based model is superior and that it would act as a counterweight to political polarisation, but Josh Ryan presents evidence from the US that shows that this isn’t necessarily the case, and that independent commissions are not accountable to the voters.