Wherever there’s a battle over public education lately, a billionaire is somehow involved. Los Angeles, Newark, the “education reform” project as a whole — the ultrarich always have their hands in efforts to antagonize teachers.

One city they’ve now set their sights on: Oakland, where teachers are in the middle of union contract negotiations and just authorized a strike. Some teachers stayed out of school in one-day wildcat strikes in December and January, joined by many of their students. According to posts circulating on Facebook and Instagram, Oakland students have planned to call out sick in solidarity with teachers today.

Just like other teachers’ union battles these days, the contract fight pits students and working people against billionaire pro-corporate school reformers and the politicians backing them.