Today we discuss political forecasting, death and taxes.Goodness! We’re just 65 days from election day. Time flies when you’re watching American democracy teeter.Still think Republicans will lose the House?Your friendly political columnist makes no predictions. It’s hard to know the future, seeing as how it hasn’t happened yet. But our best guide — historical trends — suggest Democrats are exceedingly likely to seize control on Nov. 3.They need only flip three seats and, going back well over half a century, the average midterm gain for a party out of the White House is more than two dozen. Even with the...