Plus, the Friday news quiz.

Here’s what we’re covering:

Trump’s ‘Smart Wall’ of A.I. Cameras Is Watching the Border, and More Than a Million People, by Bora Erden and Nicholas Nehamas
Justice Dept. Opens Inquiry Into Corey Lewandowski, by Glenn Thrush, Tyler Pager and Nicholas Nehamas
The Ad Dividing the Republican Party, by Jess Bidgood
Protesters in Indonesia Demand Action to Stop Fires in Rainforests, by Muktita Suhartono
Airbnb Says Guests Shouldn’t Have to Do the Dishes Anymore, by Francesca Regalado and Jonathan Wolfe

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The A.I.-Powered Cameras Watching Border Towns, and a Midterms Attack Ad Causes Outrage

The Headlines

The A.I.-Powered Cameras Watching Border Towns, and a Midterms Attack Ad Causes Outrage