AP education reporter Jocelyn Gecker and her San Francisco colleague, business/technology writer Mike Liedtke, reported exclusively that the world’s three largest computer makers have told school districts nationwide that they have a shortage of nearly 5 million laptops – in some cases exacerbated by Trump administration sanctions on Chinese suppliers – just as many districts move to online learning during the pandemic. AP bureaus across the country contributed by reaching out to some of the largest school districts in 15 states to assess the scope of the problem.