Benny Blanco

The attacks of Sept. 11 have been a rolling tragedy in the quarter-century since the towers fell, with thousands more people dying from the air they breathed in and around the toxic pile at ground zero. As the country prepared to mark the 25thanniversary, New York Mayor Zohran Mamdani released a trove of previously undisclosed government documents showing just how deadly the air was. NBC's Valerie Castro reports in this week's Sunday Focus. President Donald Trump is in Ireland where his visit has been upended by his surprise call for Ireland and Northern Ireland to reunite. The UK government said a ballot initiative for independence is not on the table and another British official said the president's "loose talk" is "deeply unhelpful." NBC's Kelly O'Donnell reports for Sunday TODAY. Meet the Press moderator Kristen Welker joins Sunday TODAY's Willie Geist to discuss President Donald Trump's impact on campaigning for Republicans ahead of the November midterms elections and his message for voters to pretend he's on the ballot. "That's a message aimed at rallying the base but in order to win these more hard-fought races, these battleground states, of course Republicans need to turnout independent, moderate, those undecided voters as well," Kristen says. In this week's Sunday Sitdown, one of music's most successful and sought-after producers, Benny Blanco, joins Sunday TODAY's Willie Geist at the legendary Electric Lady studios to discuss his new book "F*ck Failure" about his persistence to make it in music, his secret to releasing hits with the likes of Ed Sheeran and Rihanna, and dish on his first-date with his now-wife, Selena Gomez.