The Trump administration has begun an intensive, weekslong hunt for noncitizens among the nation's registered voters, despite no evidence of widespread voter fraud. Hundreds of federal agents from the Department of Homeland Security have been assigned to the task, including some removed from normal duties investigating human trafficking and terrorism. Agents are scouring state voter rolls, using dates of birth and partial Social Security numbers, and in some cases posing as individual voters on public websites.

Decades of evidence suggest noncitizen voting is very rare, but the operation reveals the extent of the administration's search for fraud ahead of November elections. In related news, the Postal Service is developing a screening system for mail-in ballots, which blue states argue violates the Constitution, and a whistle-blower warns it could disrupt voting by mail.

A federal judge ruled that Google did not have to break up its advertising technology business, but must change practices to benefit competitors. The decision leaves the $4.1 trillion company's power largely unchanged. Many at-risk Republicans are skipping Trump's midterm party in Dallas, where lawmakers are charged $25,000 to attend.

Scientists studying the Himalayan glacier collapse in Nepal believe a bedrock failure caused the disaster, releasing over seven billion cubic feet of rock and ice. George Lucas's museum of narrative art opens in Los Angeles later this month, featuring mostly non-Star Wars exhibits.