Takeaways from Tuesday's primaries. And, victims of mosque shooting revealed Good morning. You're reading the Up First newsletter. Subscribe here to get it delivered to your inbox, and listen to the Up First podcast for all the news you need to start your day. Today's top stories Rep. Thomas Massie of Kentucky yesterday lost the Republican House primary by nearly 10 percentage points. Trump-backed challenger Ed Gallrein secured the victory over Massie, who is the latest Republican lawmaker to lose his seat after angering the president. This became the most expensive House primary in history, with $33 million spent on TV, much of it directed at Massie, according to NPR's ad-tracking partner AdImpact. Meanwhile, in other states like Georgia, Democrats continued to show strong enthusiasm. Larger voter turnout could be a good sign for the party ahead of the November midterm elections. Here are four takeaways from last night's primaries. toggle caption Brynn Anderson/AP 🎧 Several U.S. House primaries in Alabama won't be counted and will require special elections in a few months due to redistricting, NPR's Stephen Fowler tells Up First. The state is reverting some districts to older lines that are more favorable to Republicans. In many other races across the U.S., the general election was essentially held yesterday because so many were uncontested, Fowler said. and will require special elections in a few months due to redistricting, NPR's Stephen Fowler tells Up First. The state is reverting some districts to older lines that are more favorable to Republicans. In many other races across the U.S., the general election was essentially held yesterday because so many were uncontested, Fowler said. ➡️ Atlanta Mayor Keisha Lance Bottoms won the Democratic primary for Georgia governor and will face the Republican runoff winner. In the GOP primary, Lt. Gov. Burt Jones will compete against healthcare executive Rick Jackson next month. Sponsor Message Yesterday, Trump said he was an hour away from deciding to launch new strikes against Iran before he called them off. He said he delayed them because "serious negotiations" were happening, and said he would give Iran two or three days — or maybe a week — to reach a deal. Vice President Vance later presented a slightly different perspective, indicating that Iran has two options: Continue negotiations or face a restart of the military campaign. 🎧 The possibility of the U.S. striking Iran this weekend highlights the uncertainty analysts fear could prolong the conflict for months, NPR's Franco Ordoñez says. Mona Yacoubian, a former State Department official who now works at the Center for Strategic and International Studies, warns that the situation could turn into a "frozen conflict" in the region, capable of reigniting at any moment. Vance has said that Iran is fractured, and its leaders have different views on what direction to take. The vice president says he is unsure whether the division stems from poor communication or a lack of good faith, but he acknowledges it complicates the process. It can be challenging to reach an agreement when the parties can't agree on the issues that are being negotiated, Ordoñez says. Sponsor Message San Diego authorities have released more details about the victims and suspects in the California mosque attack that killed five people, including the two suspected gunmen. Police Chief Scott Wahl says the three victims died while attempting to stop the gunmen. Imam Taha Hassane of the Islamic Center of San Diego identified them as Mansour Kaziha, 78, Nader Awad, 57, and Amin Abdullah, 51. Police say Abdullah, a security guard, saved the lives of 140 children during the shooting. Officials said the two teen suspects met online, and a special agent in charge of the FBI field office said they "did not discriminate on who they hated." 🎧 The suspects appear to have livestreamed the shooting, NPR's extremism correspondent Odette Yousef says. A 75-page document has been attributed to them, containing the names of two individuals. NPR has confirmed those two names with a person familiar with the case, who was not authorized to speak about an ongoing investigation. The writings and the video make it clear that these two individuals were part of a global white supremacist accelerationist movement, Yousef says. She adds that everything she reviewed in the video and documents was familiar to her. Many elements of their attack appear similar to the 2019 attacks on two mosques in Christchurch, New Zealand, including the livestreaming and the type of clothing the shooters wore. While Yousef says these signs indicate the suspects were replicating previous attacks and consumed online content that influenced how they carried out the shooting, she says she found some differences. Their writings didn't always reference the pseudoscience and conspiracy theories found in obscure online hate spaces. It incorporated concerns like the fear of Sharia law overtaking smal