Following Kamala Harris’s speech at the Democratic convention, we inquired with several undecided and Republican voters about whether she had secured their support. Many felt… see more

On Thursday night, it was up to Kamala Harris to make the closing argument for why Democrats deserved another four years in the White House. In her headlining speech of the Democratic National Convention, which had been as festive, and at times as frivolous, as a giant block party, Ms. Harris spoke of standing up to global tyranny, and of lessons she learned from her single mother. She blasted the former President Donald J. Trump as an “unserious man” and spoke of the “awesome responsibility” that comes with the privilege of being an American.

It all left Democrats on the convention floor feeling euphoric and focused, confident that her speech would spur the Democratic base to turn out in November.

But outside the arena, and outside the bubble of ride-or-die Democratic voters, some voters, particularly Republicans, said they did not even bother to watch the speech. And among some still on the fence — those who could make a difference in a tight contest — Ms. Harris’s words did not make immediate converts. They said they needed more specifics.

Bob and Sharon Reed watched Ms. Harris’s speech on their farm in the hills of central Pennsylvania. Both of them voted for Mr. Trump in past elections and both of them liked some of his policies, if not his personality. They came away from Ms. Harris’s speech feeling a little conflicted.

The problem? They liked it.

“I really wasn’t happy with the Biden administration,” said Ms. Reed, who like her husband is 77 and a retired schoolteacher. “But listening to her tonight, maybe it’s not as hard to vote for her. And, you know, I’m a little scared of what Trump will do when he gets back in power.”