A memorial near the driveway to Nancy Guthrie’s residence in February in Tucson, Ariz.

Grand Canyon National Park will remain open to the public during the shutdown.

A leader at the University of Texas said the institution would be eager to work with the Trump administration. Other universities have been more circumspect.

An Intel construction site in Chandler, Ariz. Intel is among the companies that have pledged to invest hundreds of billions of dollars in U.S. chip-making facilities.

“When it comes to just perceiving dog emotions, we think we know what’s happening,” one of the authors said. “But we’re actually subconsciously relying on a lot of other factors.”

Derek Chauvin in court in Minneapolis in 2021.

“This MAGA threat is a threat to the brick and mortar of our democratic institutions,” President Biden said in Tempe, Ariz. “It’s also a threat to the character of our nation.”