The vice president Kamala edges ahead of her Republican opponent in a Pennsylvania poll that was published on Sunday.

That’s why Kamala Harris could defeat Donald Trump, despite a national mood and an issue set that is helping pave the way for the former president’s comeback from political ignominy. But the switch to Harris as the Democratic nominee was just enough to reenergize Democrats and refocus attention on Trump and the controversies that have surrounded him over the past nine and a half years.