A year ago today, the world changed. It’s not often you can say that with as much confidence as when you’re referring to the election of Donald Trump as President of the United States. He’s had few legislative victories, but he’s used his levers of power to roll back many of his predecessor’s policies, and to whip up controversy over immigration, patriotism, and national identity. But for Democrats, this week, successes at the ballot box have brought a glimpse of blue sky.