Harris Makes History But Obama Steals the Show

It was obvious Barack Obama didn’t relish the job, but he agreed to take it on anyway. The former two-term president felt compelled, he said, because the 2020 election is like none other -- the very concept of American democracy itself is on the line.

In taking the fight Wednesday night to his successor, Obama performed a role reversal of sorts. Typically, it’s the political party’s vice presidential nominee who savages the opposition candidate. The woman of the hour, Kamala Harris, did get some digs in against President Trump,...