Polls show Trump winning key swing states. That’s partly a failure of the press | Margaret Sullivan

Polls can't predict - but they can warn. And I'm not sure our horserace-obsessed media are heeding the warning

I learned the hard way to be skeptical about the predictive power of public opinion polls.

I remember election night 2016 all too well, as I hit delete on my partially pre-written Washington Post column and instead tried to look into the future of a Trump presidency. It was a future that wasn't supposed to happen.

Margaret Sullivan is a Guardian US columnist writing on media, politics and culture