Sen. Kyrsten Sinema has made progressives more than mad. The Democrat’s opposition to raising the minimum wage, changing the filibuster, and the price tag for President Joe Biden’s social spending plan have some groups poised to back a primary challenger in 2024. Even as Arizona’s COVID-19 outbreak shows signs of improvement, the state’s hospitals are approaching capacity. Tuesday, Biden announced his intent to nominate two of Arizona’s own as chairs of the National Endowment for the Humanities and National Endowment for the Arts. Plus the latest in Fronteras Desk, education, business and metro Phoenix news.