Who is Tim Walz?; Reporters Ask the Mayor; A Mask Ban in Nassau County; 100 Years of Ice Cream

On today's show:

• Ernesto Londoño, Midwest correspondent for The New York Times based in Minnesota, provides a full biography of Minnesota governor turned Democratic vice presidential candidate, Tim Walz.

• Mayor Adams holds one off-topic press conference per week, where reporters can ask him questions on any subject. Elizabeth Kim, Gothamist and WNYC reporter, recaps what he talked about at this week's event.

• Nassau County Republicans passed a ban on face coverings in public, with supporters saying it's in response to "antisemitic incidents," and Democrats accusing their GOP colleagues of stoking a culture war. Charles Lane, WNYC and Gothamist reporter, reports on what he says was a "raucous debate," and what may happen next.

• For the tenth thing in our centennial series, Laura Weiss, journalist and author of Ice Cream: A Global History (Reaktion Books, 2011), gives us the scoop on the history of an iconic summer treat: ice cream.

Transcripts are posted to each segment as they become available.