Arizona has reported more than 900 cases of whooping cough in 2025 — that’s the highest case count in more than a decade. President Donald Trump says he will put an additional tariff on Mexico if it doesn’t send over water it owes the U.S. The Scottsdale Unified School District will close and repurpose two schools due to declining enrollment and a several-million-dollar budget shortfall. Plus the latest business, politics and metro Phoenix news.