The briefing for Sunday, April 26.

Diplomatic efforts to end the US-Iran war stalled Saturday after President Trump canceled a planned trip by his envoys to Pakistan and Iran's foreign minister departed Islamabad. Trump said his negotiators Steve Witkoff and Jared Kushner would be wasting "too much time," adding that if Iran wanted to talk "all they have to do is call." Iranian Foreign Minister Abbas Araghchi left Pakistan after holding talks with mediators, saying he had shared Iran's position on ending the war but was "yet to see if the U.S. is truly serious about diplomacy."

The breakdown follows historic face-to-face talks earlier this month between US Vice President JD Vance and Iranian Parliament Speaker Mohammad Bagher Qalibaf. Iranian officials have questioned how they can trust the US after American forces began blockading Iranian ports in response to Iran's grip on the Strait of Hormuz. Trump later claimed Iran had sent a "much better" proposal within 10 minutes of him canceling the trip, though he provided no details beyond insisting Iran "will not have a nuclear weapon."

The standoff continues in the Strait of Hormuz, where roughly a fifth of the world's oil passes in peacetime. The US has increased its naval presence to block Iranian oil exports and is now hunting for Iranian mines in the waterway, an operation Pentagon officials told lawmakers could take six months. The price of Brent crude oil remains nearly 50% higher than when the war began in late February. At least 3,375 people have been killed in Iran and 2,496 in Lebanon since the conflict started with US and Israeli strikes.

The Supreme Court will hear arguments Monday in a case that could determine whether geofence warrants violate the Fourth Amendment's ban on unreasonable searches. The case centers on Okello Chatrie, a Virginia bank robber whose cellphone location data led police to him after they obtained a warrant from Google for information on all devices near the crime scene. Chatrie made off with $195,000 from a suburban Richmond bank in May 2019 and eluded police until they used the geofence warrant, which collected location history from cellphones near the bank around the time it was robbed.

Geofence warrants work in reverse from traditional police methods. Instead of identifying a suspect and then obtaining a warrant to search their property, police use geofences when they have only a location where a crime occurred. The warrants allow them to collect data on everyone in the area and work backward to identify suspects. Prosecutors credit the technique with helping crack cold cases and identifying suspects in cases where surveillance cameras didn't capture faces or license plates, including the January 6, 2021 Capitol riot.

Civil liberties groups argue geofences amount to fishing expeditions that subject innocent people to searches of private records merely because their phones were near a crime scene. Law professors warn a Supreme Court ruling favoring the technique could "unleash a much broader wave of similar reverse searches." Chatrie pleaded guilty and was sentenced to nearly 12 years in prison, but his lawyers argue none of the evidence should have been used against him. A federal appeals court allowed the evidence despite finding the search violated his rights, reasoning the officer who applied for the warrant reasonably believed he was acting properly.

Mexico's government said Saturday that two US agents killed in a car crash last weekend were not authorized to participate in operations on Mexican soil, escalating tensions over sovereignty. The CIA agents were returning from destroying a clandestine drug lab in Chihuahua state when their vehicle drove off a ravine and exploded, killing them and two Mexican officers. Mexico's security ministry said one agent entered the country as a "visitor" while the other had a diplomatic passport, but "neither had formal accreditation to participate in operational activities within national territory."

The incident comes amid fraught relations between Mexico and the US over counter-narcotics operations. President Claudia Sheinbaum has repeatedly declined offers of US-led operations in Mexico and insists foreign officials can only operate with prior federal clearance. Mexican law explicitly prohibits foreign agents from participating in operations without government approval. Sheinbaum has come under intensifying pressure from President Trump to crack down on drug trafficking, but she remains adamant that Mexico's sovereignty should not be breached.

The ministry said Mexico's government was not aware of foreign agents operating or planning to participate in an operation on its soil. Mexican and US officials have offered contradictory accounts, with Sheinbaum initially admitting federal forces were involved after the government said it had no knowledge of any operation. Chihuahua State Attorney General César Jáuregui described the Americans as "instructor officers" engaged in "training work," while a Reuters investigation last year found the CIA had been running covert operations in Mexico for years with the government's approval.

Hungary's outgoing Prime Minister Viktor Orbán announced Saturday he will not take his seat in parliament following his party's crushing election defeat, saying he is "needed not in parliament, but in the reorganisation of the patriotic movement." Despite his nationalist Fidesz party dropping from 135 seats to just 52 in the April 12 vote, Orbán was re-elected as an MP on the party's proportional representation list. He said he has decided to return the mandate and will focus on rebuilding what he calls the "national side."

The landslide victory by the center-right Tisza party, led by former Fidesz insider Péter Magyar, ended Orbán's 16-year rule. Tisza won more than a two-thirds majority with 141 of 199 parliamentary seats, the largest majority in Hungary's post-Communist history. Magyar has promised to reverse Orbán-era changes to education and health, tackle corruption, restore judicial independence, and kill off the widely loathed patronage system that enriched party loyalists. When parliament convenes May 9, it will be the first time since 1990 that Orbán has not held a seat among lawmakers.

Voters abandoned Orbán amid brewing public unhappiness over allegations of corruption and declining living standards. While Orbán aligned himself with President Trump and Russia's Vladimir Putin, Tisza supporters frequently chanted "Russians go home" during the campaign. Magyar has pledged to seek more cordial ties with Brussels and Kyiv instead of being a stumbling block for the EU and Ukraine. Orbán's parliamentary bloc will be led by Gergely Gulyás, who previously served as minister overseeing the prime minister's office. Orbán's fate as Fidesz leader will be decided at a party conference in June.

Gunshots rang out at the White House Correspondents' Dinner Saturday night at the Washington Hilton, forcing the evacuation of President Trump, First Lady Melania Trump, and Vice President JD Vance. The Secret Service rushed the officials off the stage as shots were heard and glass shattered, while agents in helmets and bulletproof vests trained their guns on the crowd of roughly 2,500 attendees. Guests dove under tables and ran from the ballroom as confusion and fear spread through the venue.

The incident occurred as dinner was being served, with low thudding sounds resembling semi-automatic weapons followed by the sound of shattering glass. Secret Service agents ran across the ballroom to protect FBI Director Kash Patel, who was on the floor shielding his girlfriend. Health Secretary RFK Jr. was seated nearby. For five to ten minutes, attendees remained under tables waiting to see if a gunman had entered the ballroom and would begin shooting at the crowd.

Security at the venue was described as relatively light for an event with the president in attendance. Roads around the Hilton had been closed for hours, but security checks inside were cursory, with one attendee noting an agent waved through his ticket from six feet away and wasn't particularly interested in bleeps from his jacket pocket during a security wand check. The security felt like a regular White House Correspondents' Dinner rather than one with heightened presidential protection. The Secret Service is responding to the active threat, but details about casualties or the shooter remain unclear.