Zohran Mamdani was sworn in as mayor of New York in a private ceremony at an abandoned subway station before the public inauguration event outside City Hall; 34, a democratic socialist, he is the first Muslim and South Asian to govern US’s largest city

Hundreds of shops in Minnesota went on strike putting up "closed" signs, students and workers stayed home, thousands flooded the streets in the most widespread protest since ICE arrived in Minneapolis, demanding federal immigration agents leave the city

The atomic clocks at the National Institute of Standards and Technology, some of the most accurate in the world, fell out of sync of 5-millionths of a second earlier this month because of a power outage

National Guard troops will not be deployed in Illinois following a Supreme Court decision that left in place a ruling by a federal judge in Chicago: the justices turned down government’s request in what is its second loss before a court in four days