America faces greater division as parties draw safe seats for congressional districts

The US is poised to have a staggeringly low number of competitive House seats, an alarming trend that makes it harder to govern and exacerbates political polarization

When millions of American voters head to the polls this autumn to vote for congressional candidates, the vast majority of their votes won't matter at all.

It's an idea that's anathema to the very idea of US government - that politicians are accountable to the people. But America is poised to have a staggeringly low number of competitive seats in the US House, an alarming trend that makes it harder to govern and exacerbates political polarization.