Kamala Harris and her running mate, Tim Walz, sat down this afternoon with a CNN anchor for an interview that was set to air at 9 p.m. Eastern. It is Harris’s first major television interview since she became the Democratic nominee for president.

It’s a high-stakes moment. Harris’s nascent campaign has fueled a surge in enthusiasm among Democratic voters, and a significant uptick in the polls. But she has mostly avoided extended engagements with journalists.

“We have not had a chance to hear her be pressed on specific policy issues, nor has she dealt with even remotely challenging questions about what her administration would be like,” our politics reporter Reid Epstein told me.

When Harris is asked about policy, Reid said, it will be interesting to see if she engages with the details or mostly tries to turn the conversation toward warnings about Donald Trump. Her answers could help define her campaign for voters, and will test her political dexterity.

Here’s what else to know:

• The Army criticized the Trump campaign for insulting an official at Arlington National Cemetery who was physically pushed by a campaign aide.

• Election officials in Georgia said that new state rules would make the voting process less secure and their jobs more difficult.

• President Biden’s allies in the Senate played a more assertive role than previously known in his stepping aside. Here’s the inside story.