Good morning — this is the Up First digest with the main takeaways from Tuesday’s primaries and other top headlines to start your day.
Key political results
– Rep. Thomas Massie of Kentucky lost the Republican House primary to Trump-backed challenger Ed Gallrein by roughly 10 percentage points. The race was the most expensive House primary on record, with about $33 million spent on TV ads, much of it targeting Massie. His defeat continues a pattern of incumbent Republicans losing favor after clashing with the former president.
– Alabama will need special elections in several U.S. House contests because recent redistricting reverts some districts to earlier lines; in a number of races across the country, the general contest was effectively decided on primary night because so many seats were uncontested.
– In Georgia, former Atlanta mayor Keisha Lance Bottoms won the Democratic primary for governor and will face the GOP runoff winner. The Republican runoff next month will pit Lt. Gov. Burt Jones against healthcare executive Rick Jackson.
Trump, Vance and Iran
– President Trump said he came within an hour of ordering fresh strikes on Iran but called them off because “serious negotiations” were underway. He said he would give Iran a few days — or possibly a week — to reach a deal. Vice President Vance offered a sharper framing, saying Iran can either negotiate or face a restart of military action.
– Analysts warn the current back-and-forth and inconsistent signals could extend the confrontation for months and risk creating a volatile, “frozen” regional conflict that could reignite. U.S. officials note fractures within Iran’s leadership complicate diplomacy and the prospects for a stable agreement.
San Diego mosque shooting: victims and investigation
– San Diego authorities released new details about the mosque attack that left five people dead, including the two suspected gunmen. Police and community leaders say three congregants were killed trying to stop the shooters; the mosque’s imam identified them as Mansour Kaziha, 78; Nader Awad, 57; and Amin Abdullah, 51. Officials said Abdullah, a security guard, helped save about 140 children during the incident.
– Investigators say the two teenage suspects met online and appear to have livestreamed the attack. Documents attributed to them — including a roughly 75-page manifesto with names of two individuals — and video evidence point to links with an international white supremacist accelerationist movement. Reporters and extremism experts note clear echoes of tactics used in past mass attacks, including the Christchurch mosque shootings, while also observing that some of the suspects’ writings drew on more mainstream far‑right talking points circulating in U.S. media and politics.
Other national news
– Minnesota Gov. Tim Walz signed the nation’s first law banning commercial prediction market platforms from operating in the state. The law makes it illegal to host or advertise sites that let people wager on future events — including elections, sports and global affairs — and takes effect in August. The Biden administration’s Justice Department has said it will sue in response, preparing for a legal battle that could affect platforms such as Kalshi and Polymarket.
Climate Solutions Week: Denver’s plan
– As part of a week highlighting local climate solutions, Denver is piloting a thermal energy network to heat and cool downtown buildings with circulating water, geothermal sources and even recovered heat from sewage. The plan would repurpose parts of the city’s old steam system to create an “ambient loop” serving a cluster of city-owned buildings. If the project succeeds, officials hope it could be a model for decarbonizing dense downtown districts elsewhere.
Deep dive: tariffs, trade and industries
– Cambria, a major U.S. quartz countertop manufacturer led by CEO Marty Davis — a prominent donor — has repeatedly petitioned the government for tariffs on imported quartz. Rivals say the resulting tariffs and proposed quotas raise costs for competitors and suppliers and are an example of political favoritism.
– Timeline: Cambria won tariffs in 2018 on some quartz imports from China. It later pressed for duties on imports from India and Turkey. In late 2025, Cambria and other domestic producers petitioned for a global safeguard probe into surging imports and alleged evasion tactics. In April, the U.S. International Trade Commission recommended tariffs of up to 40% for four years plus import quotas; the final decision now rests with the president.
Three things to know before you go
1) A new study finds that widening educational and economic gaps between men and women are reshaping marriage and family patterns in the United States, leaving many women with a smaller pool of financially stable partners.
2) A nurse’s personal story about recovering from opioid addiction helped Barb Barnes, whose daughter Autumn’s mother struggled with pain medication after heart surgery. That interaction played a key role in how the family later managed pain and recovery.
3) A coalition of 24 states and the District of Columbia filed suit in federal court challenging a Trump administration rule that limits access to federal student loans for borrowers pursuing certain graduate degrees in popular health-care fields.
This summary was prepared to give you the morning’s main headlines. For deeper coverage and the Up First podcast, check your favorite news sources and episode feeds.